[bsp/at32] 1.add support at32f402/405 series, 2.update emac/rtc/qspi/usb drivers (#8245)

2026-10-02 14:23:19 +08:00 · 2023-11-09 16:38:19 +08:00
parent df0d8b4230
commit ed357aa014
225 changed files with 74786 additions and 1025 deletions
@@ -53,7 +53,9 @@ jobs:
                - "synwit/swm341"
                - "beaglebone"
                - "zynqmp-r5-axu4ev"
+                - "at32/at32f402-start"
                - "at32/at32f403a-start"
+                - "at32/at32f405-start"
                - "at32/at32f407-start"
                - "at32/at32f413-start"
                - "at32/at32f415-start"
@@ -0,0 +1,21 @@
+mainmenu "RT-Thread Configuration"
+
+config BSP_DIR
+    string
+    option env="BSP_ROOT"
+    default "."
+
+config RTT_DIR
+    string
+    option env="RTT_ROOT"
+    default "../../.."
+
+config PKGS_DIR
+    string
+    option env="PKGS_ROOT"
+    default "packages"
+
+source "$RTT_DIR/Kconfig"
+source "$PKGS_DIR/Kconfig"
+source "../libraries/Kconfig"
+source "board/Kconfig"
@@ -0,0 +1,139 @@
+# AT32F402 AT-START 开发板 BSP 说明
+
+## 简介
+
+AT32F402 AT-START是雅特力推出的一款AT32F402系列的评估板，其搭载的MCU主要资源参数如下：
+
+| 硬件      | 描述          |
+| --------- | ------------- |
+| 芯片型号  | AT32F402RCT7  |
+| CPU       | ARM Cortex M4 |
+| 主频      | 216M          |
+| 片内SRAM  | 96K           |
+| 片内FLASH | 256K          |
+
+## 编译说明
+
+AT32F402-START板级包支持MDK4﹑MDK5﹑IAR开发环境和GCC编译器，以下是具体版本信息：
+
+| IDE/编译器 | 已测试版本                   |
+| ---------- | ---------------------------- |
+| MDK4       | MDK4.74                      |
+| MDK5       | MDK531                       |
+| IAR        | IAR8.20                      |
+| GCC        | GCC 5.4.1 20160919 (release) |
+
+## 板载资源
+
+- MCU：AT32F402RCT7，主频 216MHz，256KB FLASH，96KB RAM
+- 常用外设
+  - LED：3个，（红色PF4、黄色PF5、绿色PF6）
+  - 按键：1个，KEY_USER（兼具唤醒功能，PA0)
+- 常用接口：插针串口J8
+- 调试接口，板载的 AT-LINK SWD 下载
+
+## 外设支持
+
+本 BSP 目前对外设驱动的支持情况如下：
+
+| 驱动      | 支持情况 |            备注            |
+| --------- | -------- | :------------------------: |
+| UART      | 支持     | USART1/2/3                 |
+| GPIO      | 支持     | PA0...PF7                  |
+| IIC       | 支持     | GPIO模拟I2C                |
+| SPI       | 支持     | SPI1/2                     |
+| ADC       | 支持     | ADC1                       |
+| PWM       | 支持     | TMR1/2                     |
+| HWTIMER   | 支持     | TMR3/4                     |
+| CAN       | 支持     | CAN1                       |
+| QSPI      | 支持     | QSPI1/2                    |
+| WDT       | 支持     |                            |
+| RTC       | 支持     |                            |
+| FLASH     | 支持     |                            |
+| USBFS     | 支持     | OTG1                       |
+
+### IO在板级支持包中的映射情况
+
+| IO号 | 板级包中的定义 |
+| ---- | -------------- |
+| PF4  | LED2           |
+| PF5  | LED3           |
+| PF6  | LED4           |
+| PA9  | USART1_TX      |
+| PA10 | USART1_RX      |
+| PA2  | USART2_TX      |
+| PA3  | USART2_RX      |
+| PB10 | USART3_TX      |
+| PB11 | USART3_RX      |
+| PA4  | SPI1_NSS       |
+| PA5  | SPI1_SCK       |
+| PA6  | SPI1_MISO      |
+| PA7  | SPI1_MOSI      |
+| PF1  | SPI2_NSS       |
+| PC7  | SPI2_SCK       |
+| PC2  | SPI2_MISO      |
+| PC3  | SPI2_MOSI      |
+| PB6  | I2C1_SCL       |
+| PB7  | I2C1_SDA       |
+| PA8  | PWM_TMR1_CH1   |
+| PA11 | PWM_TMR1_CH4   |
+| PA0  | PWM_TMR2_CH1   |
+| PA1  | PWM_TMR2_CH2   |
+| PC0  | ADC1/2_IN10    |
+| PC1  | ADC1/2_IN11    |
+| PC2  | ADC1/2_IN12    |
+| PC3  | ADC1/2_IN13    |
+| PC4  | ADC1/2_IN14    |
+| PC5  | ADC1/2_IN15    |
+| PB8  | CAN1_RX        |
+| PB9  | CAN1_TX        |
+| PC9  | QSPI1_IO0      |
+| PB7  | QSPI1_IO1      |
+| PC8  | QSPI1_IO2      |
+| PC5  | QSPI1_IO3      |
+| PB2  | QSPI1_SCK      |
+| PC11 | QSPI1_CS       |
+| PA11 | USB_DM         |
+| PA12 | USB_DP         |
+
+## 使用说明
+
+    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
+
+### 快速上手
+
+本 BSP 为开发者提供 MDK4、MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
+
+#### 硬件连接
+
+使用数据线连接开发板到 PC，打开电源开关。
+
+#### 编译下载
+
+双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+
+> 工程默认配置使用AT-LINK SWD下载程序，在通过AT-LINK SWD连接开发板的基础上，点击下载按钮即可下载程序到开发板
+
+#### 运行结果
+
+下载程序成功之后，系统会自动运行，观察开发板上 LED 的运行效果，LED2/3/4 会周期性闪烁。
+
+连接开发板对应串口到 PC , 在终端工具里打开相应的串口（115200-8-1-N），复位设备后，在串口上可以看到 RT-Thread 的输出信息:
+
+```bash
+ \ | /
+- RT -     Thread Operating System
+ / | \     4.1.0 build Mar 23 2022
+ 2006 - 2022 Copyright by RT-Thread team
+msh />
+```
+
+## 注意事项
+
+可在雅特力官方网站进行所需资料下载，如Keil_v5/Keil_v4/IAR等pack安装包和AT-START开发板原理图等（www.arterytek.com）
+
+## 联系人信息
+
+维护人:
+
+- [sheltonyu]
@@ -0,0 +1,14 @@
+# for module compiling
+from building import *
+import os
+
+cwd = GetCurrentDir()
+objs = []
+
+list = os.listdir(cwd)
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')
@@ -0,0 +1,62 @@
+import os
+import sys
+import rtconfig
+
+if os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.getenv('RTT_ROOT')
+else:
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
+
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+try:
+    from building import *
+except:
+    print('Cannot found RT-Thread root directory, please check RTT_ROOT')
+    print(RTT_ROOT)
+    exit(-1)
+
+TARGET = 'rtthread.' + rtconfig.TARGET_EXT
+
+DefaultEnvironment(tools=[])
+env = Environment(tools = ['mingw'],
+    AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
+    CC = rtconfig.CC, CFLAGS = rtconfig.CFLAGS,
+    AR = rtconfig.AR, ARFLAGS = '-rc',
+    LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
+env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
+
+if rtconfig.PLATFORM in ['iccarm']:
+    env.Replace(CCCOM = ['$CC $CFLAGS $CPPFLAGS $_CPPDEFFLAGS $_CPPINCFLAGS -o $TARGET $SOURCES'])
+    env.Replace(ARFLAGS = [''])
+    env.Replace(LINKCOM = env["LINKCOM"] + ' --map project.map')
+
+Export('RTT_ROOT')
+Export('rtconfig')
+
+SDK_ROOT = os.path.abspath('./')
+
+if os.path.exists(SDK_ROOT + '/libraries'):
+    libraries_path_prefix = SDK_ROOT + '/libraries'
+else:
+    libraries_path_prefix = os.path.dirname(SDK_ROOT) + '/libraries'
+
+SDK_LIB = libraries_path_prefix
+Export('SDK_LIB')
+
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=False)
+
+at32_library = 'AT32F402_405_Firmware_Library'
+rtconfig.BSP_LIBRARY_TYPE = at32_library
+
+# include libraries
+objs.extend(SConscript(os.path.join(libraries_path_prefix, at32_library, 'SConscript')))
+
+# include usb libraries
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbotg_library', 'SConscript')))
+
+# include drivers
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'rt_drivers', 'SConscript')))
+
+# make a building
+DoBuilding(TARGET, objs)
@@ -0,0 +1,15 @@
+from building import *
+import os
+
+cwd = GetCurrentDir()
+src = Glob('*.c')
+CPPPATH = [cwd]
+
+group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
+
+list = os.listdir(cwd)
+for item in list:
+    if os.path.isfile(os.path.join(cwd, item, 'SConscript')):
+        group = group + SConscript(os.path.join(item, 'SConscript'))
+
+Return('group')
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-10-18     shelton      first version
+ */
+
+#include <rtthread.h>
+#include <rtdevice.h>
+#include "drv_common.h"
+#include "drv_gpio.h"
+
+/* defined the led2 pin: pf4 */
+#define LED2_PIN    GET_PIN(F, 4)
+/* defined the led3 pin: pf5 */
+#define LED3_PIN    GET_PIN(F, 5)
+/* defined the led4 pin: pf6 */
+#define LED4_PIN    GET_PIN(F, 6)
+
+int main(void)
+{
+    rt_uint32_t speed = 200;
+    /* set led2 pin mode to output */
+    rt_pin_mode(LED2_PIN, PIN_MODE_OUTPUT);
+    /* set led3 pin mode to output */
+    rt_pin_mode(LED3_PIN, PIN_MODE_OUTPUT);
+    /* set led4 pin mode to output */
+    rt_pin_mode(LED4_PIN, PIN_MODE_OUTPUT);
+
+    while (1)
+    {
+        rt_pin_write(LED2_PIN, PIN_LOW);
+        rt_thread_mdelay(speed);
+        rt_pin_write(LED3_PIN, PIN_LOW);
+        rt_thread_mdelay(speed);
+        rt_pin_write(LED4_PIN, PIN_LOW);
+        rt_thread_mdelay(speed);
+        rt_pin_write(LED2_PIN, PIN_HIGH);
+        rt_thread_mdelay(speed);
+        rt_pin_write(LED3_PIN, PIN_HIGH);
+        rt_thread_mdelay(speed);
+        rt_pin_write(LED4_PIN, PIN_HIGH);
+        rt_thread_mdelay(speed);
+    }
+}
@@ -0,0 +1,29 @@
+import os
+import rtconfig
+from building import *
+
+Import('SDK_LIB')
+
+cwd = GetCurrentDir()
+
+# add general drivers
+src = Split('''
+src/board.c
+src/at32_msp.c
+''')
+
+path = [cwd]
+path += [cwd + '/inc']
+
+startup_path_prefix = SDK_LIB
+
+if rtconfig.PLATFORM in ['gcc']:
+    src += [startup_path_prefix + '/AT32F402_405_Firmware_Library/cmsis/cm4/device_support/startup/gcc/startup_at32f402_405.s']
+elif rtconfig.PLATFORM in ['armcc', 'armclang']:
+    src += [startup_path_prefix + '/AT32F402_405_Firmware_Library/cmsis/cm4/device_support/startup/mdk/startup_at32f402_405.s']
+elif rtconfig.PLATFORM in ['iccarm']:
+    src += [startup_path_prefix + '/AT32F402_405_Firmware_Library/cmsis/cm4/device_support/startup/iar/startup_at32f402_405.s']
+
+CPPDEFINES = ['AT32F402RCT7']
+group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)
+Return('group')
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-10-18     shelton      first version
+ */
+
+#ifndef __AT32_MSP_H__
+#define __AT32_MSP_H__
+
+void at32_msp_usart_init(void *instance);
+void at32_msp_spi_init(void *instance);
+void at32_msp_tmr_init(void *instance);
+void at32_msp_i2c_init(void *instance);
+void at32_msp_adc_init(void *instance);
+void at32_msp_hwtmr_init(void *instance);
+void at32_msp_can_init(void *instance);
+void at32_msp_qspi_init(void *instance);
+void at32_msp_usb_init(void *instance);
+
+#endif /* __AT32_MSP_H__ */
@@ -0,0 +1,149 @@
+/**
+  **************************************************************************
+  * @file     at32f402_405_conf.h
+  * @brief    at32f402_405 config header file
+  **************************************************************************
+  *                       Copyright notice & Disclaimer
+  *
+  * The software Board Support Package (BSP) that is made available to
+  * download from Artery official website is the copyrighted work of Artery.
+  * Artery authorizes customers to use, copy, and distribute the BSP
+  * software and its related documentation for the purpose of design and
+  * development in conjunction with Artery microcontrollers. Use of the
+  * software is governed by this copyright notice and the following disclaimer.
+  *
+  * THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
+  * GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
+  * TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
+  * STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
+  * INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
+  *
+  **************************************************************************
+  */
+
+/* define to prevent recursive inclusion -------------------------------------*/
+#ifndef __AT32F402_405_CONF_H
+#define __AT32F402_405_CONF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+  * @brief in the following line adjust the value of high speed external crystal (hext)
+  * used in your application
+  *
+  * tip: to avoid modifying this file each time you need to use different hext, you
+  *      can define the hext value in your toolchain compiler preprocessor.
+  *
+  */
+#if !defined  HEXT_VALUE
+#define HEXT_VALUE                       ((uint32_t)12000000) /*!< value of the high speed external crystal in hz */
+#endif
+
+/**
+  * @brief in the following line adjust the high speed external crystal (hext) startup
+  * timeout value
+  */
+#define HEXT_STARTUP_TIMEOUT             ((uint16_t)0x3000)  /*!< time out for hext start up */
+#define HICK_VALUE                       ((uint32_t)8000000) /*!< value of the high speed internal clock in hz */
+#define LEXT_VALUE                       ((uint32_t)32768)   /*!< value of the low speed external clock in hz */
+
+/* module define -------------------------------------------------------------*/
+#define ACC_MODULE_ENABLED
+#define ADC_MODULE_ENABLED
+#define CAN_MODULE_ENABLED
+#define CRC_MODULE_ENABLED
+#define CRM_MODULE_ENABLED
+#define DEBUG_MODULE_ENABLED
+#define DMA_MODULE_ENABLED
+#define ERTC_MODULE_ENABLED
+#define EXINT_MODULE_ENABLED
+#define FLASH_MODULE_ENABLED
+#define GPIO_MODULE_ENABLED
+#define I2C_MODULE_ENABLED
+#define MISC_MODULE_ENABLED
+#define PWC_MODULE_ENABLED
+#define QSPI_MODULE_ENABLED
+#define SCFG_MODULE_ENABLED
+#define SPI_MODULE_ENABLED
+#define TMR_MODULE_ENABLED
+#define USART_MODULE_ENABLED
+#define USB_MODULE_ENABLED
+#define WDT_MODULE_ENABLED
+#define WWDT_MODULE_ENABLED
+
+/* includes ------------------------------------------------------------------*/
+#ifdef ACC_MODULE_ENABLED
+#include "at32f402_405_acc.h"
+#endif
+#ifdef ADC_MODULE_ENABLED
+#include "at32f402_405_adc.h"
+#endif
+#ifdef CAN_MODULE_ENABLED
+#include "at32f402_405_can.h"
+#endif
+#ifdef CRC_MODULE_ENABLED
+#include "at32f402_405_crc.h"
+#endif
+#ifdef CRM_MODULE_ENABLED
+#include "at32f402_405_crm.h"
+#endif
+#ifdef DEBUG_MODULE_ENABLED
+#include "at32f402_405_debug.h"
+#endif
+#ifdef DMA_MODULE_ENABLED
+#include "at32f402_405_dma.h"
+#endif
+#ifdef ERTC_MODULE_ENABLED
+#include "at32f402_405_ertc.h"
+#endif
+#ifdef EXINT_MODULE_ENABLED
+#include "at32f402_405_exint.h"
+#endif
+#ifdef FLASH_MODULE_ENABLED
+#include "at32f402_405_flash.h"
+#endif
+#ifdef GPIO_MODULE_ENABLED
+#include "at32f402_405_gpio.h"
+#endif
+#ifdef I2C_MODULE_ENABLED
+#include "at32f402_405_i2c.h"
+#endif
+#ifdef MISC_MODULE_ENABLED
+#include "at32f402_405_misc.h"
+#endif
+#ifdef PWC_MODULE_ENABLED
+#include "at32f402_405_pwc.h"
+#endif
+#ifdef QSPI_MODULE_ENABLED
+#include "at32f402_405_qspi.h"
+#endif
+#ifdef SCFG_MODULE_ENABLED
+#include "at32f402_405_scfg.h"
+#endif
+#ifdef SPI_MODULE_ENABLED
+#include "at32f402_405_spi.h"
+#endif
+#ifdef TMR_MODULE_ENABLED
+#include "at32f402_405_tmr.h"
+#endif
+#ifdef USART_MODULE_ENABLED
+#include "at32f402_405_usart.h"
+#endif
+#ifdef USB_MODULE_ENABLED
+#include "at32f402_405_usb.h"
+#endif
+#ifdef WDT_MODULE_ENABLED
+#include "at32f402_405_wdt.h"
+#endif
+#ifdef WWDT_MODULE_ENABLED
+#include "at32f402_405_wwdt.h"
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-03-08     shelton      first version
+ */
+
+#ifndef __BOARD_H__
+#define __BOARD_H__
+
+#include <rtthread.h>
+#include "at32f402_405.h"
+#include "at32_msp.h"
+#include "drv_common.h"
+#include "drv_gpio.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define AT32_FLASH_START_ADRESS         ((uint32_t)0x08000000)
+#define FLASH_PAGE_SIZE                 (2 * 1024)
+#define AT32_FLASH_SIZE                 (256 * 1024)
+#define AT32_FLASH_END_ADDRESS          ((uint32_t)(AT32_FLASH_START_ADRESS + AT32_FLASH_SIZE))
+
+/* internal sram memory size[kbytes] <96>, default: 96*/
+#define AT32_SRAM_SIZE                  96
+#define AT32_SRAM_END                   (0x20000000 + AT32_SRAM_SIZE * 1024)
+
+#if defined(__ARMCC_VERSION)
+extern int Image$$RW_IRAM1$$ZI$$Limit;
+#define HEAP_BEGIN                      ((void *)&Image$$RW_IRAM1$$ZI$$Limit)
+#elif __ICCARM__
+#pragma section="CSTACK"
+#define HEAP_BEGIN                      (__segment_end("CSTACK"))
+#else
+extern int __bss_end;
+#define HEAP_BEGIN                      ((void *)&__bss_end)
+#endif
+
+#define HEAP_END                        AT32_SRAM_END
+
+void system_clock_config(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __BOARD_H__ */
@@ -0,0 +1,28 @@
+/*###ICF### Section handled by ICF editor, don't touch! ****/
+/*-Editor annotation file-*/
+/* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
+/*-Specials-*/
+define symbol __ICFEDIT_intvec_start__ = 0x08000000;
+/*-Memory Regions-*/
+define symbol __ICFEDIT_region_ROM_start__ = 0x08000000;
+define symbol __ICFEDIT_region_ROM_end__   = 0x0803FFFF;
+define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;
+define symbol __ICFEDIT_region_RAM_end__   = 0x20017FFF;
+/*-Sizes-*/
+define symbol __ICFEDIT_size_cstack__ = 0x0400;
+define symbol __ICFEDIT_size_heap__   = 0x0000;
+/**** End of ICF editor section. ###ICF###*/
+
+define memory mem with size = 4G;
+define region ROM_region      = mem:[from __ICFEDIT_region_ROM_start__   to __ICFEDIT_region_ROM_end__];
+define region RAM_region      = mem:[from __ICFEDIT_region_RAM_start__   to __ICFEDIT_region_RAM_end__];
+
+define block CSTACK    with alignment = 8, size = __ICFEDIT_size_cstack__   { };
+
+initialize by copy { readwrite };
+do not initialize  { section .noinit };
+
+place at address mem:__ICFEDIT_intvec_start__ { readonly section .intvec };
+
+place in ROM_region   { readonly };
+place in RAM_region   { readwrite, last block CSTACK};
@@ -0,0 +1,156 @@
+/*
+ * linker script for AT32 with GNU ld
+ */
+
+/* Program Entry, set to mark it as "used" and avoid gc */
+MEMORY
+{
+    ROM (rx) : ORIGIN = 0x08000000, LENGTH = 256k /* 256KB flash */
+    RAM (rw) : ORIGIN = 0x20000000, LENGTH =  96k /* 96K sram */
+}
+ENTRY(Reset_Handler)
+_system_stack_size = 0x200;
+
+SECTIONS
+{
+    .text :
+    {
+        . = ALIGN(4);
+        _stext = .;
+        KEEP(*(.isr_vector))            /* Startup code */
+
+        . = ALIGN(4);
+        *(.text)                        /* remaining code */
+        *(.text.*)                      /* remaining code */
+        *(.rodata)                      /* read-only data (constants) */
+        *(.rodata*)
+        *(.glue_7)
+        *(.glue_7t)
+        *(.gnu.linkonce.t*)
+
+        /* section information for finsh shell */
+        . = ALIGN(4);
+        __fsymtab_start = .;
+        KEEP(*(FSymTab))
+        __fsymtab_end = .;
+
+        . = ALIGN(4);
+        __vsymtab_start = .;
+        KEEP(*(VSymTab))
+        __vsymtab_end = .;
+
+        /* section information for initial. */
+        . = ALIGN(4);
+        __rt_init_start = .;
+        KEEP(*(SORT(.rti_fn*)))
+        __rt_init_end = .;
+
+        . = ALIGN(4);
+
+        PROVIDE(__ctors_start__ = .);
+        KEEP (*(SORT(.init_array.*)))
+        KEEP (*(.init_array))
+        PROVIDE(__ctors_end__ = .);
+
+        . = ALIGN(4);
+
+        _etext = .;
+    } > ROM = 0
+
+    /* .ARM.exidx is sorted, so has to go in its own output section.  */
+    __exidx_start = .;
+    .ARM.exidx :
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+
+        /* This is used by the startup in order to initialize the .data secion */
+        _sidata = .;
+    } > ROM
+    __exidx_end = .;
+
+    /* .data section which is used for initialized data */
+
+    .data : AT (_sidata)
+    {
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .data secion */
+        _sdata = . ;
+
+        *(.data)
+        *(.data.*)
+        *(.gnu.linkonce.d*)
+
+        PROVIDE(__dtors_start__ = .);
+        KEEP(*(SORT(.dtors.*)))
+        KEEP(*(.dtors))
+        PROVIDE(__dtors_end__ = .);
+
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .data secion */
+        _edata = . ;
+    } >RAM
+
+    .stack :
+    {
+        . = ALIGN(4);
+        _sstack = .;
+        . = . + _system_stack_size;
+        . = ALIGN(4);
+        _estack = .;
+    } >RAM
+
+    __bss_start = .;
+    .bss :
+    {
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .bss secion */
+        _sbss = .;
+
+        *(.bss)
+        *(.bss.*)
+        *(COMMON)
+
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .bss secion */
+        _ebss = . ;
+
+        *(.bss.init)
+    } > RAM
+    __bss_end = .;
+
+    _end = .;
+
+    /* Stabs debugging sections.  */
+    .stab          0 : { *(.stab) }
+    .stabstr       0 : { *(.stabstr) }
+    .stab.excl     0 : { *(.stab.excl) }
+    .stab.exclstr  0 : { *(.stab.exclstr) }
+    .stab.index    0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment       0 : { *(.comment) }
+    /* DWARF debug sections.
+     * Symbols in the DWARF debugging sections are relative to the beginning
+     * of the section so we begin them at 0.  */
+    /* DWARF 1 */
+    .debug          0 : { *(.debug) }
+    .line           0 : { *(.line) }
+    /* GNU DWARF 1 extensions */
+    .debug_srcinfo  0 : { *(.debug_srcinfo) }
+    .debug_sfnames  0 : { *(.debug_sfnames) }
+    /* DWARF 1.1 and DWARF 2 */
+    .debug_aranges  0 : { *(.debug_aranges) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    /* DWARF 2 */
+    .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
+    .debug_abbrev   0 : { *(.debug_abbrev) }
+    .debug_line     0 : { *(.debug_line) }
+    .debug_frame    0 : { *(.debug_frame) }
+    .debug_str      0 : { *(.debug_str) }
+    .debug_loc      0 : { *(.debug_loc) }
+    .debug_macinfo  0 : { *(.debug_macinfo) }
+    /* SGI/MIPS DWARF 2 extensions */
+    .debug_weaknames 0 : { *(.debug_weaknames) }
+    .debug_funcnames 0 : { *(.debug_funcnames) }
+    .debug_typenames 0 : { *(.debug_typenames) }
+    .debug_varnames  0 : { *(.debug_varnames) }
+}
@@ -0,0 +1,15 @@
+; *************************************************************
+; *** Scatter-Loading Description File generated by uVision ***
+; *************************************************************
+
+LR_IROM1 0x08000000 0x00040000  {    ; load region size_region
+  ER_IROM1 0x08000000 0x00040000  {  ; load address = execution address
+   *.o (RESET, +First)
+   *(InRoot$$Sections)
+   .ANY (+RO)
+  }
+  RW_IRAM1 0x20000000 0x00018000  {  ; RW data
+   .ANY (+RW +ZI)
+  }
+}
+
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-10-18     shelton      first version
+ */
+
+#include "board.h"
+
+void system_clock_config(void)
+{
+  /* reset crm */
+  crm_reset();
+
+  /* config flash psr register */
+  flash_psr_set(FLASH_WAIT_CYCLE_6);
+
+  /* enable pwc periph clock */
+  crm_periph_clock_enable(CRM_PWC_PERIPH_CLOCK, TRUE);
+
+  /* set power ldo output voltage to 1.3v */
+  pwc_ldo_output_voltage_set(PWC_LDO_OUTPUT_1V3);
+
+  crm_clock_source_enable(CRM_CLOCK_SOURCE_HEXT, TRUE);
+
+  /* wait till hext is ready */
+  while(crm_hext_stable_wait() == ERROR)
+  {
+  }
+
+  /* if pll parameter has changed, please use the AT32_New_Clock_Configuration tool for new configuration. */
+  crm_pll_config(CRM_PLL_SOURCE_HEXT, 72, 1, CRM_PLL_FP_4);
+
+  /* config pllu div */
+  crm_pllu_div_set(CRM_PLL_FU_18);
+
+  /* enable pll */
+  crm_clock_source_enable(CRM_CLOCK_SOURCE_PLL, TRUE);
+
+  /* wait till pll is ready */
+  while(crm_flag_get(CRM_PLL_STABLE_FLAG) != SET)
+  {
+  }
+
+  /* config ahbclk */
+  crm_ahb_div_set(CRM_AHB_DIV_1);
+
+  /* config apb2clk, the maximum frequency of APB2 clock is 216 MHz */
+  crm_apb2_div_set(CRM_APB2_DIV_1);
+
+  /* config apb1clk, the maximum frequency of APB1 clock is 120 MHz */
+  crm_apb1_div_set(CRM_APB1_DIV_2);
+
+  /* enable auto step mode */
+  crm_auto_step_mode_enable(TRUE);
+
+  /* select pll as system clock source */
+  crm_sysclk_switch(CRM_SCLK_PLL);
+
+  /* wait till pll is used as system clock source */
+  while(crm_sysclk_switch_status_get() != CRM_SCLK_PLL)
+  {
+  }
+
+  /* disable auto step mode */
+  crm_auto_step_mode_enable(FALSE);
+
+  /* update system_core_clock global variable */
+  system_core_clock_update();
+}
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+
+<workspace>
+  <project>
+    <path>$WS_DIR$\project.ewp</path>
+  </project>
+  <batchBuild/>
+</workspace>
+
+
@@ -0,0 +1,167 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<ProjectOpt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_opt.xsd">
+
+  <SchemaVersion>1.0</SchemaVersion>
+
+  <Header>### uVision Project, (C) Keil Software</Header>
+
+  <Extensions>
+    <cExt>*.c</cExt>
+    <aExt>*.s*; *.src; *.a*</aExt>
+    <oExt>*.obj</oExt>
+    <lExt>*.lib</lExt>
+    <tExt>*.txt; *.h; *.inc; *.md</tExt>
+    <pExt>*.plm</pExt>
+    <CppX>*.cpp</CppX>
+  </Extensions>
+
+  <DaveTm>
+    <dwLowDateTime>0</dwLowDateTime>
+    <dwHighDateTime>0</dwHighDateTime>
+  </DaveTm>
+
+  <Target>
+    <TargetName>rt-thread</TargetName>
+    <ToolsetNumber>0x4</ToolsetNumber>
+    <ToolsetName>ARM-ADS</ToolsetName>
+    <TargetOption>
+      <CLKADS>8000000</CLKADS>
+      <OPTTT>
+        <gFlags>1</gFlags>
+        <BeepAtEnd>1</BeepAtEnd>
+        <RunSim>1</RunSim>
+        <RunTarget>0</RunTarget>
+      </OPTTT>
+      <OPTHX>
+        <HexSelection>1</HexSelection>
+        <FlashByte>65535</FlashByte>
+        <HexRangeLowAddress>0</HexRangeLowAddress>
+        <HexRangeHighAddress>0</HexRangeHighAddress>
+        <HexOffset>0</HexOffset>
+      </OPTHX>
+      <OPTLEX>
+        <PageWidth>79</PageWidth>
+        <PageLength>66</PageLength>
+        <TabStop>8</TabStop>
+        <ListingPath>.\build\keil\List\</ListingPath>
+      </OPTLEX>
+      <ListingPage>
+        <CreateCListing>1</CreateCListing>
+        <CreateAListing>1</CreateAListing>
+        <CreateLListing>1</CreateLListing>
+        <CreateIListing>0</CreateIListing>
+        <AsmCond>1</AsmCond>
+        <AsmSymb>1</AsmSymb>
+        <AsmXref>0</AsmXref>
+        <CCond>1</CCond>
+        <CCode>0</CCode>
+        <CListInc>0</CListInc>
+        <CSymb>0</CSymb>
+        <LinkerCodeListing>0</LinkerCodeListing>
+      </ListingPage>
+      <OPTXL>
+        <LMap>1</LMap>
+        <LComments>1</LComments>
+        <LGenerateSymbols>1</LGenerateSymbols>
+        <LLibSym>1</LLibSym>
+        <LLines>1</LLines>
+        <LLocSym>1</LLocSym>
+        <LPubSym>1</LPubSym>
+        <LXref>0</LXref>
+        <LExpSel>0</LExpSel>
+      </OPTXL>
+      <OPTFL>
+        <tvExp>0</tvExp>
+        <tvExpOptDlg>0</tvExpOptDlg>
+        <IsCurrentTarget>1</IsCurrentTarget>
+      </OPTFL>
+      <CpuCode>0</CpuCode>
+      <DebugOpt>
+        <uSim>0</uSim>
+        <uTrg>1</uTrg>
+        <sLdApp>1</sLdApp>
+        <sGomain>1</sGomain>
+        <sRbreak>1</sRbreak>
+        <sRwatch>1</sRwatch>
+        <sRmem>1</sRmem>
+        <sRfunc>1</sRfunc>
+        <sRbox>1</sRbox>
+        <tLdApp>1</tLdApp>
+        <tGomain>1</tGomain>
+        <tRbreak>1</tRbreak>
+        <tRwatch>1</tRwatch>
+        <tRmem>1</tRmem>
+        <tRfunc>0</tRfunc>
+        <tRbox>1</tRbox>
+        <tRtrace>0</tRtrace>
+        <sRSysVw>1</sRSysVw>
+        <tRSysVw>1</tRSysVw>
+        <tPdscDbg>0</tPdscDbg>
+        <sRunDeb>0</sRunDeb>
+        <sLrtime>0</sLrtime>
+        <nTsel>12</nTsel>
+        <sDll></sDll>
+        <sDllPa></sDllPa>
+        <sDlgDll></sDlgDll>
+        <sDlgPa></sDlgPa>
+        <sIfile></sIfile>
+        <tDll></tDll>
+        <tDllPa></tDllPa>
+        <tDlgDll></tDlgDll>
+        <tDlgPa></tDlgPa>
+        <tIfile></tIfile>
+        <pMon>BIN\CMSIS_AGDI.dll</pMon>
+      </DebugOpt>
+      <TargetDriverDllRegistry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>CMSIS_AGDI</Key>
+          <Name>-X"AT-Link-EZ CMSIS-DAP" -U0DF531B010C0765905978507 -O78 -S0 -C0 -P00 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(0) -FO7 -FD20000000 -FC800 -FN1 -FF0AT32F402_256 -FS08000000 -FL040000</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>JL2CM3</Key>
+          <Name>-U788529815 -O78 -S0 -A0 -C0 -JU1 -JI127.0.0.1 -JP0 -RST0 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(4) -TO18 -TC10000000 -TP21 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -TB1 -TFE0 -FO15 -FD20000000 -FC800 -FN1 -FF0AT32F403A_1024 -FS08000000 -FL0100000</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>UL2CM3</Key>
+          <Name>UL2CM3(-O14 -S0 -C0 -N00("ARM Cortex-M3") -D00(1BA00477) -L00(4) -FO7  -FN1 -FC800 -FD20000000 -FF0AT32F402_256 -FL040000 -FS08000000</Name>
+        </SetRegEntry>
+      </TargetDriverDllRegistry>
+      <Breakpoint/>
+      <Tracepoint>
+        <THDelay>0</THDelay>
+      </Tracepoint>
+      <DebugFlag>
+        <trace>0</trace>
+        <periodic>0</periodic>
+        <aLwin>0</aLwin>
+        <aCover>0</aCover>
+        <aSer1>0</aSer1>
+        <aSer2>0</aSer2>
+        <aPa>0</aPa>
+        <viewmode>0</viewmode>
+        <vrSel>0</vrSel>
+        <aSym>0</aSym>
+        <aTbox>0</aTbox>
+        <AscS1>0</AscS1>
+        <AscS2>0</AscS2>
+        <AscS3>0</AscS3>
+        <aSer3>0</aSer3>
+        <eProf>0</eProf>
+        <aLa>0</aLa>
+        <aPa1>0</aPa1>
+        <AscS4>0</AscS4>
+        <aSer4>0</aSer4>
+        <StkLoc>0</StkLoc>
+        <TrcWin>0</TrcWin>
+        <newCpu>1</newCpu>
+        <uProt>0</uProt>
+      </DebugFlag>
+      <LintExecutable></LintExecutable>
+      <LintConfigFile></LintConfigFile>
+    </TargetOption>
+  </Target>
+
+</ProjectOpt>
@@ -0,0 +1,185 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<ProjectOpt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_optx.xsd">
+
+  <SchemaVersion>1.0</SchemaVersion>
+
+  <Header>### uVision Project, (C) Keil Software</Header>
+
+  <Extensions>
+    <cExt>*.c</cExt>
+    <aExt>*.s*; *.src; *.a*</aExt>
+    <oExt>*.obj; *.o</oExt>
+    <lExt>*.lib</lExt>
+    <tExt>*.txt; *.h; *.inc; *.md</tExt>
+    <pExt>*.plm</pExt>
+    <CppX>*.cpp</CppX>
+    <nMigrate>0</nMigrate>
+  </Extensions>
+
+  <DaveTm>
+    <dwLowDateTime>0</dwLowDateTime>
+    <dwHighDateTime>0</dwHighDateTime>
+  </DaveTm>
+
+  <Target>
+    <TargetName>rt-thread</TargetName>
+    <ToolsetNumber>0x4</ToolsetNumber>
+    <ToolsetName>ARM-ADS</ToolsetName>
+    <TargetOption>
+      <CLKADS>12000000</CLKADS>
+      <OPTTT>
+        <gFlags>1</gFlags>
+        <BeepAtEnd>1</BeepAtEnd>
+        <RunSim>0</RunSim>
+        <RunTarget>1</RunTarget>
+        <RunAbUc>0</RunAbUc>
+      </OPTTT>
+      <OPTHX>
+        <HexSelection>1</HexSelection>
+        <FlashByte>65535</FlashByte>
+        <HexRangeLowAddress>0</HexRangeLowAddress>
+        <HexRangeHighAddress>0</HexRangeHighAddress>
+        <HexOffset>0</HexOffset>
+      </OPTHX>
+      <OPTLEX>
+        <PageWidth>79</PageWidth>
+        <PageLength>66</PageLength>
+        <TabStop>8</TabStop>
+        <ListingPath>.\build\keil\List\</ListingPath>
+      </OPTLEX>
+      <ListingPage>
+        <CreateCListing>1</CreateCListing>
+        <CreateAListing>1</CreateAListing>
+        <CreateLListing>1</CreateLListing>
+        <CreateIListing>0</CreateIListing>
+        <AsmCond>1</AsmCond>
+        <AsmSymb>1</AsmSymb>
+        <AsmXref>0</AsmXref>
+        <CCond>1</CCond>
+        <CCode>0</CCode>
+        <CListInc>0</CListInc>
+        <CSymb>0</CSymb>
+        <LinkerCodeListing>0</LinkerCodeListing>
+      </ListingPage>
+      <OPTXL>
+        <LMap>1</LMap>
+        <LComments>1</LComments>
+        <LGenerateSymbols>1</LGenerateSymbols>
+        <LLibSym>1</LLibSym>
+        <LLines>1</LLines>
+        <LLocSym>1</LLocSym>
+        <LPubSym>1</LPubSym>
+        <LXref>0</LXref>
+        <LExpSel>0</LExpSel>
+      </OPTXL>
+      <OPTFL>
+        <tvExp>1</tvExp>
+        <tvExpOptDlg>0</tvExpOptDlg>
+        <IsCurrentTarget>1</IsCurrentTarget>
+      </OPTFL>
+      <CpuCode>255</CpuCode>
+      <DebugOpt>
+        <uSim>0</uSim>
+        <uTrg>1</uTrg>
+        <sLdApp>1</sLdApp>
+        <sGomain>1</sGomain>
+        <sRbreak>1</sRbreak>
+        <sRwatch>1</sRwatch>
+        <sRmem>1</sRmem>
+        <sRfunc>1</sRfunc>
+        <sRbox>1</sRbox>
+        <tLdApp>1</tLdApp>
+        <tGomain>1</tGomain>
+        <tRbreak>1</tRbreak>
+        <tRwatch>1</tRwatch>
+        <tRmem>1</tRmem>
+        <tRfunc>0</tRfunc>
+        <tRbox>1</tRbox>
+        <tRtrace>1</tRtrace>
+        <sRSysVw>1</sRSysVw>
+        <tRSysVw>1</tRSysVw>
+        <sRunDeb>0</sRunDeb>
+        <sLrtime>0</sLrtime>
+        <bEvRecOn>1</bEvRecOn>
+        <bSchkAxf>0</bSchkAxf>
+        <bTchkAxf>0</bTchkAxf>
+        <nTsel>3</nTsel>
+        <sDll></sDll>
+        <sDllPa></sDllPa>
+        <sDlgDll></sDlgDll>
+        <sDlgPa></sDlgPa>
+        <sIfile></sIfile>
+        <tDll></tDll>
+        <tDllPa></tDllPa>
+        <tDlgDll></tDlgDll>
+        <tDlgPa></tDlgPa>
+        <tIfile></tIfile>
+        <pMon>BIN\CMSIS_AGDI.dll</pMon>
+      </DebugOpt>
+      <TargetDriverDllRegistry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>UL2CM3</Key>
+          <Name>UL2CM3(-S0 -C0 -P0 )  -FN1 -FC1000 -FD20000000 -FF0AT32F402_256 -FL040000 -FS08000000 -FP0($$Device:AT32F402RCT7$Flash\AT32F402_256.FLM)</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>CMSIS_AGDI</Key>
+          <Name>-X"Any" -UAny -O206 -S0 -C0 -P00000000 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(0) -TO65554 -TC10000000 -TT10000000 -TP20 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -FO7 -FD20000000 -FC1000 -FN1 -FF0AT32F402_256.FLM -FS08000000 -FL040000 -FP0($$Device:AT32F402RCT7$Flash\AT32F402_256.FLM)</Name>
+        </SetRegEntry>
+      </TargetDriverDllRegistry>
+      <Breakpoint/>
+      <Tracepoint>
+        <THDelay>0</THDelay>
+      </Tracepoint>
+      <DebugFlag>
+        <trace>0</trace>
+        <periodic>0</periodic>
+        <aLwin>0</aLwin>
+        <aCover>0</aCover>
+        <aSer1>0</aSer1>
+        <aSer2>0</aSer2>
+        <aPa>0</aPa>
+        <viewmode>0</viewmode>
+        <vrSel>0</vrSel>
+        <aSym>0</aSym>
+        <aTbox>0</aTbox>
+        <AscS1>0</AscS1>
+        <AscS2>0</AscS2>
+        <AscS3>0</AscS3>
+        <aSer3>0</aSer3>
+        <eProf>0</eProf>
+        <aLa>0</aLa>
+        <aPa1>0</aPa1>
+        <AscS4>0</AscS4>
+        <aSer4>0</aSer4>
+        <StkLoc>0</StkLoc>
+        <TrcWin>0</TrcWin>
+        <newCpu>0</newCpu>
+        <uProt>0</uProt>
+      </DebugFlag>
+      <LintExecutable></LintExecutable>
+      <LintConfigFile></LintConfigFile>
+      <bLintAuto>0</bLintAuto>
+      <bAutoGenD>0</bAutoGenD>
+      <LntExFlags>0</LntExFlags>
+      <pMisraName></pMisraName>
+      <pszMrule></pszMrule>
+      <pSingCmds></pSingCmds>
+      <pMultCmds></pMultCmds>
+      <pMisraNamep></pMisraNamep>
+      <pszMrulep></pszMrulep>
+      <pSingCmdsp></pSingCmdsp>
+      <pMultCmdsp></pMultCmdsp>
+    </TargetOption>
+  </Target>
+
+  <Group>
+    <GroupName>Source Group 1</GroupName>
+    <tvExp>0</tvExp>
+    <tvExpOptDlg>0</tvExpOptDlg>
+    <cbSel>0</cbSel>
+    <RteFlg>0</RteFlg>
+  </Group>
+
+</ProjectOpt>
@@ -0,0 +1,178 @@
+#ifndef RT_CONFIG_H__
+#define RT_CONFIG_H__
+
+/* Automatically generated file; DO NOT EDIT. */
+/* RT-Thread Configuration */
+
+/* RT-Thread Kernel */
+
+#define RT_NAME_MAX 8
+#define RT_ALIGN_SIZE 8
+#define RT_THREAD_PRIORITY_32
+#define RT_THREAD_PRIORITY_MAX 32
+#define RT_TICK_PER_SECOND 1000
+#define RT_USING_OVERFLOW_CHECK
+#define RT_USING_HOOK
+#define RT_HOOK_USING_FUNC_PTR
+#define RT_USING_IDLE_HOOK
+#define RT_IDLE_HOOK_LIST_SIZE 4
+#define IDLE_THREAD_STACK_SIZE 256
+#define RT_USING_TIMER_SOFT
+#define RT_TIMER_THREAD_PRIO 4
+#define RT_TIMER_THREAD_STACK_SIZE 512
+
+/* kservice optimization */
+
+
+/* Inter-Thread communication */
+
+#define RT_USING_SEMAPHORE
+#define RT_USING_MUTEX
+#define RT_USING_EVENT
+#define RT_USING_MAILBOX
+#define RT_USING_MESSAGEQUEUE
+
+/* Memory Management */
+
+#define RT_USING_MEMPOOL
+#define RT_USING_SMALL_MEM
+#define RT_USING_MEMHEAP
+#define RT_MEMHEAP_FAST_MODE
+#define RT_USING_SMALL_MEM_AS_HEAP
+#define RT_USING_HEAP
+
+/* Kernel Device Object */
+
+#define RT_USING_DEVICE
+#define RT_USING_CONSOLE
+#define RT_CONSOLEBUF_SIZE 128
+#define RT_CONSOLE_DEVICE_NAME "uart1"
+#define RT_VER_NUM 0x50001
+#define RT_USING_HW_ATOMIC
+#define RT_USING_CPU_FFS
+#define ARCH_ARM
+#define ARCH_ARM_CORTEX_M
+#define ARCH_ARM_CORTEX_M4
+
+/* RT-Thread Components */
+
+#define RT_USING_COMPONENTS_INIT
+#define RT_USING_USER_MAIN
+#define RT_MAIN_THREAD_STACK_SIZE 2048
+#define RT_MAIN_THREAD_PRIORITY 10
+#define RT_USING_MSH
+#define RT_USING_FINSH
+#define FINSH_USING_MSH
+#define FINSH_THREAD_NAME "tshell"
+#define FINSH_THREAD_PRIORITY 20
+#define FINSH_THREAD_STACK_SIZE 4096
+#define FINSH_USING_HISTORY
+#define FINSH_HISTORY_LINES 5
+#define FINSH_USING_SYMTAB
+#define FINSH_CMD_SIZE 80
+#define MSH_USING_BUILT_IN_COMMANDS
+#define FINSH_USING_DESCRIPTION
+#define FINSH_ARG_MAX 10
+
+/* DFS: device virtual file system */
+
+
+/* Device Drivers */
+
+#define RT_USING_DEVICE_IPC
+#define RT_UNAMED_PIPE_NUMBER 64
+#define RT_USING_SERIAL
+#define RT_USING_SERIAL_V1
+#define RT_SERIAL_USING_DMA
+#define RT_SERIAL_RB_BUFSZ 64
+#define RT_USING_PIN
+
+/* Using USB */
+
+
+/* C/C++ and POSIX layer */
+
+/* ISO-ANSI C layer */
+
+/* Timezone and Daylight Saving Time */
+
+#define RT_LIBC_USING_LIGHT_TZ_DST
+#define RT_LIBC_TZ_DEFAULT_HOUR 8
+#define RT_LIBC_TZ_DEFAULT_MIN 0
+#define RT_LIBC_TZ_DEFAULT_SEC 0
+
+/* POSIX (Portable Operating System Interface) layer */
+
+
+/* Interprocess Communication (IPC) */
+
+
+/* Socket is in the 'Network' category */
+
+
+/* Network */
+
+
+/* Utilities */
+
+
+/* RT-Thread Utestcases */
+
+
+/* RT-Thread online packages */
+
+/* IoT - internet of things */
+
+
+/* Wi-Fi */
+
+/* Marvell WiFi */
+
+
+/* Wiced WiFi */
+
+
+/* IoT Cloud */
+
+
+/* security packages */
+
+
+/* language packages */
+
+
+/* multimedia packages */
+
+
+/* tools packages */
+
+
+/* system packages */
+
+
+/* peripheral libraries and drivers */
+
+
+/* miscellaneous packages */
+
+
+/* samples: kernel and components samples */
+
+#define SOC_FAMILY_AT32
+#define SOC_SERIES_AT32F402
+
+/* Hardware Drivers Config */
+
+#define SOC_AT32F402RCT7
+
+/* Onboard Peripheral Drivers */
+
+#define BSP_USING_SERIAL
+
+/* On-chip Peripheral Drivers */
+
+#define BSP_USING_GPIO
+#define BSP_USING_UART
+#define BSP_USING_UART1
+
+#endif
@@ -0,0 +1,150 @@
+import os
+
+# toolchains options
+ARCH='arm'
+CPU='cortex-m4'
+CROSS_TOOL='gcc'
+
+# bsp lib config
+BSP_LIBRARY_TYPE = None
+
+if os.getenv('RTT_CC'):
+    CROSS_TOOL = os.getenv('RTT_CC')
+if os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.getenv('RTT_ROOT')
+
+# cross_tool provides the cross compiler
+# EXEC_PATH is the compiler execute path, for example, CodeSourcery, Keil MDK, IAR
+if  CROSS_TOOL == 'gcc':
+    PLATFORM    = 'gcc'
+    EXEC_PATH   = r'C:\Users\XXYYZZ'
+elif CROSS_TOOL == 'keil':
+    PLATFORM    = 'armcc'
+    EXEC_PATH   = r'C:/Keil_v5'
+elif CROSS_TOOL == 'iar':
+    PLATFORM    = 'iccarm'
+    EXEC_PATH   = r'C:/Program Files (x86)/IAR Systems/Embedded Workbench 8.3'
+
+if os.getenv('RTT_EXEC_PATH'):
+    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
+
+BUILD = 'debug'
+
+if PLATFORM == 'gcc':
+    # toolchains
+    PREFIX = 'arm-none-eabi-'
+    CC = PREFIX + 'gcc'
+    AS = PREFIX + 'gcc'
+    AR = PREFIX + 'ar'
+    CXX = PREFIX + 'g++'
+    LINK = PREFIX + 'gcc'
+    TARGET_EXT = 'elf'
+    SIZE = PREFIX + 'size'
+    OBJDUMP = PREFIX + 'objdump'
+    OBJCPY = PREFIX + 'objcopy'
+
+    DEVICE = ' -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=hard -ffunction-sections -fdata-sections'
+    CFLAGS = DEVICE + ' -Dgcc'
+    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -Wa,-mimplicit-it=thumb '
+    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rt-thread.map,-cref,-u,Reset_Handler -T board/linker_scripts/link.lds'
+
+    CPATH = ''
+    LPATH = ''
+
+    if BUILD == 'debug':
+        CFLAGS += ' -O0 -gdwarf-2 -g'
+        AFLAGS += ' -gdwarf-2'
+    else:
+        CFLAGS += ' -O2'
+
+    CXXFLAGS = CFLAGS
+
+    POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
+
+elif PLATFORM == 'armcc':
+    # toolchains
+    CC = 'armcc'
+    CXX = 'armcc'
+    AS = 'armasm'
+    AR = 'armar'
+    LINK = 'armlink'
+    TARGET_EXT = 'axf'
+
+    DEVICE = ' --cpu Cortex-M4.fp '
+    CFLAGS = '-c ' + DEVICE + ' --apcs=interwork --c99'
+    AFLAGS = DEVICE + ' --apcs=interwork '
+    LFLAGS = DEVICE + ' --scatter "board\linker_scripts\link.sct" --info sizes --info totals --info unused --info veneers --list rt-thread.map --strict'
+    CFLAGS += ' -I' + EXEC_PATH + '/ARM/ARMCC/include'
+    LFLAGS += ' --libpath=' + EXEC_PATH + '/ARM/ARMCC/lib'
+
+    CFLAGS += ' -D__MICROLIB '
+    AFLAGS += ' --pd "__MICROLIB SETA 1" '
+    LFLAGS += ' --library_type=microlib '
+    EXEC_PATH += '/ARM/ARMCC/bin/'
+
+    if BUILD == 'debug':
+        CFLAGS += ' -g -O0'
+        AFLAGS += ' -g'
+    else:
+        CFLAGS += ' -O2'
+
+    CXXFLAGS = CFLAGS
+    CFLAGS += ' -std=c99'
+
+    POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
+
+elif PLATFORM == 'iccarm':
+    # toolchains
+    CC = 'iccarm'
+    CXX = 'iccarm'
+    AS = 'iasmarm'
+    AR = 'iarchive'
+    LINK = 'ilinkarm'
+    TARGET_EXT = 'out'
+
+    DEVICE = '-Dewarm'
+
+    CFLAGS = DEVICE
+    CFLAGS += ' --diag_suppress Pa050'
+    CFLAGS += ' --no_cse'
+    CFLAGS += ' --no_unroll'
+    CFLAGS += ' --no_inline'
+    CFLAGS += ' --no_code_motion'
+    CFLAGS += ' --no_tbaa'
+    CFLAGS += ' --no_clustering'
+    CFLAGS += ' --no_scheduling'
+    CFLAGS += ' --endian=little'
+    CFLAGS += ' --cpu=Cortex-M4'
+    CFLAGS += ' -e'
+    CFLAGS += ' --fpu=VFPv4_sp'
+    CFLAGS += ' --dlib_config "' + EXEC_PATH + '/arm/INC/c/DLib_Config_Normal.h"'
+    CFLAGS += ' --silent'
+
+    AFLAGS = DEVICE
+    AFLAGS += ' -s+'
+    AFLAGS += ' -w+'
+    AFLAGS += ' -r'
+    AFLAGS += ' --cpu Cortex-M4'
+    AFLAGS += ' --fpu VFPv4_sp'
+    AFLAGS += ' -S'
+
+    if BUILD == 'debug':
+        CFLAGS += ' --debug'
+        CFLAGS += ' -On'
+    else:
+        CFLAGS += ' -Oh'
+
+    LFLAGS = ' --config "board/linker_scripts/link.icf"'
+    LFLAGS += ' --entry __iar_program_start'
+
+    CXXFLAGS = CFLAGS
+
+    EXEC_PATH = EXEC_PATH + '/arm/bin/'
+    POST_ACTION = 'ielftool --bin $TARGET rtthread.bin'
+
+def dist_handle(BSP_ROOT, dist_dir):
+    import sys
+    cwd_path = os.getcwd()
+    sys.path.append(os.path.join(os.path.dirname(BSP_ROOT), 'tools'))
+    from sdk_dist import dist_do_building
+    dist_do_building(BSP_ROOT, dist_dir)
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+
+<workspace>
+  <project>
+    <path>$WS_DIR$\template.ewp</path>
+  </project>
+  <batchBuild/>
+</workspace>
+
+
@@ -0,0 +1,167 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<ProjectOpt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_opt.xsd">
+
+  <SchemaVersion>1.0</SchemaVersion>
+
+  <Header>### uVision Project, (C) Keil Software</Header>
+
+  <Extensions>
+    <cExt>*.c</cExt>
+    <aExt>*.s*; *.src; *.a*</aExt>
+    <oExt>*.obj</oExt>
+    <lExt>*.lib</lExt>
+    <tExt>*.txt; *.h; *.inc; *.md</tExt>
+    <pExt>*.plm</pExt>
+    <CppX>*.cpp</CppX>
+  </Extensions>
+
+  <DaveTm>
+    <dwLowDateTime>0</dwLowDateTime>
+    <dwHighDateTime>0</dwHighDateTime>
+  </DaveTm>
+
+  <Target>
+    <TargetName>rt-thread</TargetName>
+    <ToolsetNumber>0x4</ToolsetNumber>
+    <ToolsetName>ARM-ADS</ToolsetName>
+    <TargetOption>
+      <CLKADS>8000000</CLKADS>
+      <OPTTT>
+        <gFlags>1</gFlags>
+        <BeepAtEnd>1</BeepAtEnd>
+        <RunSim>1</RunSim>
+        <RunTarget>0</RunTarget>
+      </OPTTT>
+      <OPTHX>
+        <HexSelection>1</HexSelection>
+        <FlashByte>65535</FlashByte>
+        <HexRangeLowAddress>0</HexRangeLowAddress>
+        <HexRangeHighAddress>0</HexRangeHighAddress>
+        <HexOffset>0</HexOffset>
+      </OPTHX>
+      <OPTLEX>
+        <PageWidth>79</PageWidth>
+        <PageLength>66</PageLength>
+        <TabStop>8</TabStop>
+        <ListingPath>.\build\keil\List\</ListingPath>
+      </OPTLEX>
+      <ListingPage>
+        <CreateCListing>1</CreateCListing>
+        <CreateAListing>1</CreateAListing>
+        <CreateLListing>1</CreateLListing>
+        <CreateIListing>0</CreateIListing>
+        <AsmCond>1</AsmCond>
+        <AsmSymb>1</AsmSymb>
+        <AsmXref>0</AsmXref>
+        <CCond>1</CCond>
+        <CCode>0</CCode>
+        <CListInc>0</CListInc>
+        <CSymb>0</CSymb>
+        <LinkerCodeListing>0</LinkerCodeListing>
+      </ListingPage>
+      <OPTXL>
+        <LMap>1</LMap>
+        <LComments>1</LComments>
+        <LGenerateSymbols>1</LGenerateSymbols>
+        <LLibSym>1</LLibSym>
+        <LLines>1</LLines>
+        <LLocSym>1</LLocSym>
+        <LPubSym>1</LPubSym>
+        <LXref>0</LXref>
+        <LExpSel>0</LExpSel>
+      </OPTXL>
+      <OPTFL>
+        <tvExp>0</tvExp>
+        <tvExpOptDlg>0</tvExpOptDlg>
+        <IsCurrentTarget>1</IsCurrentTarget>
+      </OPTFL>
+      <CpuCode>0</CpuCode>
+      <DebugOpt>
+        <uSim>0</uSim>
+        <uTrg>1</uTrg>
+        <sLdApp>1</sLdApp>
+        <sGomain>1</sGomain>
+        <sRbreak>1</sRbreak>
+        <sRwatch>1</sRwatch>
+        <sRmem>1</sRmem>
+        <sRfunc>1</sRfunc>
+        <sRbox>1</sRbox>
+        <tLdApp>1</tLdApp>
+        <tGomain>1</tGomain>
+        <tRbreak>1</tRbreak>
+        <tRwatch>1</tRwatch>
+        <tRmem>1</tRmem>
+        <tRfunc>0</tRfunc>
+        <tRbox>1</tRbox>
+        <tRtrace>0</tRtrace>
+        <sRSysVw>1</sRSysVw>
+        <tRSysVw>1</tRSysVw>
+        <tPdscDbg>0</tPdscDbg>
+        <sRunDeb>0</sRunDeb>
+        <sLrtime>0</sLrtime>
+        <nTsel>12</nTsel>
+        <sDll></sDll>
+        <sDllPa></sDllPa>
+        <sDlgDll></sDlgDll>
+        <sDlgPa></sDlgPa>
+        <sIfile></sIfile>
+        <tDll></tDll>
+        <tDllPa></tDllPa>
+        <tDlgDll></tDlgDll>
+        <tDlgPa></tDlgPa>
+        <tIfile></tIfile>
+        <pMon>BIN\CMSIS_AGDI.dll</pMon>
+      </DebugOpt>
+      <TargetDriverDllRegistry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>CMSIS_AGDI</Key>
+          <Name>-X"AT-Link-EZ CMSIS-DAP" -U0DF531B010C0765905978507 -O78 -S0 -C0 -P00 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(0) -FO7 -FD20000000 -FC800 -FN1 -FF0AT32F402_256 -FS08000000 -FL040000</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>JL2CM3</Key>
+          <Name>-U788529815 -O78 -S0 -A0 -C0 -JU1 -JI127.0.0.1 -JP0 -RST0 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(4) -TO18 -TC10000000 -TP21 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -TB1 -TFE0 -FO15 -FD20000000 -FC800 -FN1 -FF0AT32F403A_1024 -FS08000000 -FL0100000</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>UL2CM3</Key>
+          <Name>UL2CM3(-O14 -S0 -C0 -N00("ARM Cortex-M3") -D00(1BA00477) -L00(4) -FO7  -FN1 -FC800 -FD20000000 -FF0AT32F402_256 -FL040000 -FS08000000</Name>
+        </SetRegEntry>
+      </TargetDriverDllRegistry>
+      <Breakpoint/>
+      <Tracepoint>
+        <THDelay>0</THDelay>
+      </Tracepoint>
+      <DebugFlag>
+        <trace>0</trace>
+        <periodic>0</periodic>
+        <aLwin>0</aLwin>
+        <aCover>0</aCover>
+        <aSer1>0</aSer1>
+        <aSer2>0</aSer2>
+        <aPa>0</aPa>
+        <viewmode>0</viewmode>
+        <vrSel>0</vrSel>
+        <aSym>0</aSym>
+        <aTbox>0</aTbox>
+        <AscS1>0</AscS1>
+        <AscS2>0</AscS2>
+        <AscS3>0</AscS3>
+        <aSer3>0</aSer3>
+        <eProf>0</eProf>
+        <aLa>0</aLa>
+        <aPa1>0</aPa1>
+        <AscS4>0</AscS4>
+        <aSer4>0</aSer4>
+        <StkLoc>0</StkLoc>
+        <TrcWin>0</TrcWin>
+        <newCpu>1</newCpu>
+        <uProt>0</uProt>
+      </DebugFlag>
+      <LintExecutable></LintExecutable>
+      <LintConfigFile></LintConfigFile>
+    </TargetOption>
+  </Target>
+
+</ProjectOpt>
@@ -0,0 +1,185 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<ProjectOpt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_optx.xsd">
+
+  <SchemaVersion>1.0</SchemaVersion>
+
+  <Header>### uVision Project, (C) Keil Software</Header>
+
+  <Extensions>
+    <cExt>*.c</cExt>
+    <aExt>*.s*; *.src; *.a*</aExt>
+    <oExt>*.obj; *.o</oExt>
+    <lExt>*.lib</lExt>
+    <tExt>*.txt; *.h; *.inc; *.md</tExt>
+    <pExt>*.plm</pExt>
+    <CppX>*.cpp</CppX>
+    <nMigrate>0</nMigrate>
+  </Extensions>
+
+  <DaveTm>
+    <dwLowDateTime>0</dwLowDateTime>
+    <dwHighDateTime>0</dwHighDateTime>
+  </DaveTm>
+
+  <Target>
+    <TargetName>rt-thread</TargetName>
+    <ToolsetNumber>0x4</ToolsetNumber>
+    <ToolsetName>ARM-ADS</ToolsetName>
+    <TargetOption>
+      <CLKADS>12000000</CLKADS>
+      <OPTTT>
+        <gFlags>1</gFlags>
+        <BeepAtEnd>1</BeepAtEnd>
+        <RunSim>0</RunSim>
+        <RunTarget>1</RunTarget>
+        <RunAbUc>0</RunAbUc>
+      </OPTTT>
+      <OPTHX>
+        <HexSelection>1</HexSelection>
+        <FlashByte>65535</FlashByte>
+        <HexRangeLowAddress>0</HexRangeLowAddress>
+        <HexRangeHighAddress>0</HexRangeHighAddress>
+        <HexOffset>0</HexOffset>
+      </OPTHX>
+      <OPTLEX>
+        <PageWidth>79</PageWidth>
+        <PageLength>66</PageLength>
+        <TabStop>8</TabStop>
+        <ListingPath>.\build\keil\List\</ListingPath>
+      </OPTLEX>
+      <ListingPage>
+        <CreateCListing>1</CreateCListing>
+        <CreateAListing>1</CreateAListing>
+        <CreateLListing>1</CreateLListing>
+        <CreateIListing>0</CreateIListing>
+        <AsmCond>1</AsmCond>
+        <AsmSymb>1</AsmSymb>
+        <AsmXref>0</AsmXref>
+        <CCond>1</CCond>
+        <CCode>0</CCode>
+        <CListInc>0</CListInc>
+        <CSymb>0</CSymb>
+        <LinkerCodeListing>0</LinkerCodeListing>
+      </ListingPage>
+      <OPTXL>
+        <LMap>1</LMap>
+        <LComments>1</LComments>
+        <LGenerateSymbols>1</LGenerateSymbols>
+        <LLibSym>1</LLibSym>
+        <LLines>1</LLines>
+        <LLocSym>1</LLocSym>
+        <LPubSym>1</LPubSym>
+        <LXref>0</LXref>
+        <LExpSel>0</LExpSel>
+      </OPTXL>
+      <OPTFL>
+        <tvExp>1</tvExp>
+        <tvExpOptDlg>0</tvExpOptDlg>
+        <IsCurrentTarget>1</IsCurrentTarget>
+      </OPTFL>
+      <CpuCode>255</CpuCode>
+      <DebugOpt>
+        <uSim>0</uSim>
+        <uTrg>1</uTrg>
+        <sLdApp>1</sLdApp>
+        <sGomain>1</sGomain>
+        <sRbreak>1</sRbreak>
+        <sRwatch>1</sRwatch>
+        <sRmem>1</sRmem>
+        <sRfunc>1</sRfunc>
+        <sRbox>1</sRbox>
+        <tLdApp>1</tLdApp>
+        <tGomain>1</tGomain>
+        <tRbreak>1</tRbreak>
+        <tRwatch>1</tRwatch>
+        <tRmem>1</tRmem>
+        <tRfunc>0</tRfunc>
+        <tRbox>1</tRbox>
+        <tRtrace>1</tRtrace>
+        <sRSysVw>1</sRSysVw>
+        <tRSysVw>1</tRSysVw>
+        <sRunDeb>0</sRunDeb>
+        <sLrtime>0</sLrtime>
+        <bEvRecOn>1</bEvRecOn>
+        <bSchkAxf>0</bSchkAxf>
+        <bTchkAxf>0</bTchkAxf>
+        <nTsel>3</nTsel>
+        <sDll></sDll>
+        <sDllPa></sDllPa>
+        <sDlgDll></sDlgDll>
+        <sDlgPa></sDlgPa>
+        <sIfile></sIfile>
+        <tDll></tDll>
+        <tDllPa></tDllPa>
+        <tDlgDll></tDlgDll>
+        <tDlgPa></tDlgPa>
+        <tIfile></tIfile>
+        <pMon>BIN\CMSIS_AGDI.dll</pMon>
+      </DebugOpt>
+      <TargetDriverDllRegistry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>UL2CM3</Key>
+          <Name>UL2CM3(-S0 -C0 -P0 )  -FN1 -FC1000 -FD20000000 -FF0AT32F402_256 -FL040000 -FS08000000 -FP0($$Device:AT32F402RCT7$Flash\AT32F402_256.FLM)</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>CMSIS_AGDI</Key>
+          <Name>-X"Any" -UAny -O206 -S0 -C0 -P00000000 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(0) -TO65554 -TC10000000 -TT10000000 -TP20 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -FO7 -FD20000000 -FC1000 -FN1 -FF0AT32F402_256.FLM -FS08000000 -FL040000 -FP0($$Device:AT32F402RCT7$Flash\AT32F402_256.FLM)</Name>
+        </SetRegEntry>
+      </TargetDriverDllRegistry>
+      <Breakpoint/>
+      <Tracepoint>
+        <THDelay>0</THDelay>
+      </Tracepoint>
+      <DebugFlag>
+        <trace>0</trace>
+        <periodic>0</periodic>
+        <aLwin>0</aLwin>
+        <aCover>0</aCover>
+        <aSer1>0</aSer1>
+        <aSer2>0</aSer2>
+        <aPa>0</aPa>
+        <viewmode>0</viewmode>
+        <vrSel>0</vrSel>
+        <aSym>0</aSym>
+        <aTbox>0</aTbox>
+        <AscS1>0</AscS1>
+        <AscS2>0</AscS2>
+        <AscS3>0</AscS3>
+        <aSer3>0</aSer3>
+        <eProf>0</eProf>
+        <aLa>0</aLa>
+        <aPa1>0</aPa1>
+        <AscS4>0</AscS4>
+        <aSer4>0</aSer4>
+        <StkLoc>0</StkLoc>
+        <TrcWin>0</TrcWin>
+        <newCpu>0</newCpu>
+        <uProt>0</uProt>
+      </DebugFlag>
+      <LintExecutable></LintExecutable>
+      <LintConfigFile></LintConfigFile>
+      <bLintAuto>0</bLintAuto>
+      <bAutoGenD>0</bAutoGenD>
+      <LntExFlags>0</LntExFlags>
+      <pMisraName></pMisraName>
+      <pszMrule></pszMrule>
+      <pSingCmds></pSingCmds>
+      <pMultCmds></pMultCmds>
+      <pMisraNamep></pMisraNamep>
+      <pszMrulep></pszMrulep>
+      <pSingCmdsp></pSingCmdsp>
+      <pMultCmdsp></pMultCmdsp>
+    </TargetOption>
+  </Target>
+
+  <Group>
+    <GroupName>Source Group 1</GroupName>
+    <tvExp>0</tvExp>
+    <tvExpOptDlg>0</tvExpOptDlg>
+    <cbSel>0</cbSel>
+    <RteFlg>0</RteFlg>
+  </Group>
+
+</ProjectOpt>
@@ -351,28 +351,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
          <state>$PROJ_DIR$\..\libraries\usbd_library\inc</state>
          <state>$PROJ_DIR$\applications</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -1398,28 +1397,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
          <state>$PROJ_DIR$\..\libraries\usbd_library\inc</state>
          <state>$PROJ_DIR$\applications</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -2105,6 +2103,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cctype.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdio.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdlib.c</name>
    </file>
@@ -2114,9 +2115,6 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\ctime.c</name>
    </file>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cunistd.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cwchar.c</name>
    </file>
@@ -2168,9 +2166,6 @@
  </group>
  <group>
    <name>DeviceDrivers</name>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\drivers\core\device.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\drivers\ipc\completion.c</name>
    </file>
@@ -2243,6 +2238,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\src\components.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\src\device.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\src\idle.c</name>
    </file>
@@ -359,7 +359,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, __RTTHREAD__, AT32F403AVGT7</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;board\inc;applications;board;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\drivers\include;..\libraries\AT32F403A_407_Firmware_Library\drivers\inc;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support;.;..\..\..\components\drivers\include;..\libraries\usbd_library\inc;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\include;..\..\..\components\finsh;..\..\..\components\drivers\include;..\libraries\usbd_library\inc;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\posix\io\stdio;..\libraries\AT32F403A_407_Firmware_Library\drivers\inc;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support;.;board\inc;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;board;..\..\..\components\libc\posix\ipc;applications;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -432,6 +432,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -453,13 +460,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -508,13 +508,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -671,6 +664,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -335,7 +335,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, __RTTHREAD__, AT32F403AVGT7</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;board\inc;applications;board;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\drivers\include;..\libraries\AT32F403A_407_Firmware_Library\drivers\inc;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support;.;..\..\..\components\drivers\include;..\libraries\usbd_library\inc;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\include;..\..\..\components\finsh;..\..\..\components\drivers\include;..\libraries\usbd_library\inc;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\posix\io\stdio;..\libraries\AT32F403A_407_Firmware_Library\drivers\inc;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support;.;board\inc;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;board;..\..\..\components\libc\posix\ipc;applications;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -409,6 +409,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -430,13 +437,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -485,13 +485,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -648,6 +641,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -0,0 +1,21 @@
+mainmenu "RT-Thread Configuration"
+
+config BSP_DIR
+    string
+    option env="BSP_ROOT"
+    default "."
+
+config RTT_DIR
+    string
+    option env="RTT_ROOT"
+    default "../../.."
+
+config PKGS_DIR
+    string
+    option env="PKGS_ROOT"
+    default "packages"
+
+source "$RTT_DIR/Kconfig"
+source "$PKGS_DIR/Kconfig"
+source "../libraries/Kconfig"
+source "board/Kconfig"
@@ -0,0 +1,140 @@
+# AT32F405 AT-START 开发板 BSP 说明
+
+## 简介
+
+AT32F405 AT-START是雅特力推出的一款AT32F405系列的评估板，其搭载的MCU主要资源参数如下：
+
+| 硬件      | 描述          |
+| --------- | ------------- |
+| 芯片型号  | AT32F405RCT7  |
+| CPU       | ARM Cortex M4 |
+| 主频      | 216M          |
+| 片内SRAM  | 96K           |
+| 片内FLASH | 256K          |
+
+## 编译说明
+
+AT32F405-START板级包支持MDK4﹑MDK5﹑IAR开发环境和GCC编译器，以下是具体版本信息：
+
+| IDE/编译器 | 已测试版本                   |
+| ---------- | ---------------------------- |
+| MDK4       | MDK4.74                      |
+| MDK5       | MDK531                       |
+| IAR        | IAR8.20                      |
+| GCC        | GCC 5.4.1 20160919 (release) |
+
+## 板载资源
+
+- MCU：AT32F405RCT7，主频 216MHz，256KB FLASH，96KB RAM
+- 常用外设
+  - LED：3个，（红色PF4、黄色PF5、绿色PF6）
+  - 按键：1个，KEY_USER（兼具唤醒功能，PA0)
+- 常用接口：插针串口J8
+- 调试接口，板载的 AT-LINK SWD 下载
+
+## 外设支持
+
+本 BSP 目前对外设驱动的支持情况如下：
+
+| 驱动      | 支持情况 |            备注            |
+| --------- | -------- | :------------------------: |
+| UART      | 支持     | USART1/2/3                 |
+| GPIO      | 支持     | PA0...PF7                  |
+| IIC       | 支持     | GPIO模拟I2C                |
+| SPI       | 支持     | SPI1/2                     |
+| ADC       | 支持     | ADC1                       |
+| PWM       | 支持     | TMR1/2                     |
+| HWTIMER   | 支持     | TMR3/4                     |
+| CAN       | 支持     | CAN1                       |
+| QSPI      | 支持     | QSPI1/2                    |
+| WDT       | 支持     |                            |
+| RTC       | 支持     |                            |
+| FLASH     | 支持     |                            |
+| USBFS     | 支持     | OTG1                       |
+| USBHS     | 支持     | OTG2                       |
+
+### IO在板级支持包中的映射情况
+
+| IO号 | 板级包中的定义 |
+| ---- | -------------- |
+| PF4  | LED2           |
+| PF5  | LED3           |
+| PF6  | LED4           |
+| PA9  | USART1_TX      |
+| PA10 | USART1_RX      |
+| PA2  | USART2_TX      |
+| PA3  | USART2_RX      |
+| PB10 | USART3_TX      |
+| PB11 | USART3_RX      |
+| PA4  | SPI1_NSS       |
+| PA5  | SPI1_SCK       |
+| PA6  | SPI1_MISO      |
+| PA7  | SPI1_MOSI      |
+| PF1  | SPI2_NSS       |
+| PC7  | SPI2_SCK       |
+| PC2  | SPI2_MISO      |
+| PC3  | SPI2_MOSI      |
+| PB6  | I2C1_SCL       |
+| PB7  | I2C1_SDA       |
+| PA8  | PWM_TMR1_CH1   |
+| PA11 | PWM_TMR1_CH4   |
+| PA0  | PWM_TMR2_CH1   |
+| PA1  | PWM_TMR2_CH2   |
+| PC0  | ADC1/2_IN10    |
+| PC1  | ADC1/2_IN11    |
+| PC2  | ADC1/2_IN12    |
+| PC3  | ADC1/2_IN13    |
+| PC4  | ADC1/2_IN14    |
+| PC5  | ADC1/2_IN15    |
+| PB8  | CAN1_RX        |
+| PB9  | CAN1_TX        |
+| PC9  | QSPI1_IO0      |
+| PB7  | QSPI1_IO1      |
+| PC8  | QSPI1_IO2      |
+| PC5  | QSPI1_IO3      |
+| PB2  | QSPI1_SCK      |
+| PC11 | QSPI1_CS       |
+| PA11 | USB_DM         |
+| PA12 | USB_DP         |
+
+## 使用说明
+
+    本章节是为刚接触 RT-Thread 的新手准备的使用说明，遵循简单的步骤即可将 RT-Thread 操作系统运行在该开发板上，看到实验效果 。
+
+### 快速上手
+
+本 BSP 为开发者提供 MDK4、MDK5 和 IAR 工程，并且支持 GCC 开发环境。下面以 MDK5 开发环境为例，介绍如何将系统运行起来。
+
+#### 硬件连接
+
+使用数据线连接开发板到 PC，打开电源开关。
+
+#### 编译下载
+
+双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+
+> 工程默认配置使用AT-LINK SWD下载程序，在通过AT-LINK SWD连接开发板的基础上，点击下载按钮即可下载程序到开发板
+
+#### 运行结果
+
+下载程序成功之后，系统会自动运行，观察开发板上 LED 的运行效果，LED2/3/4 会周期性闪烁。
+
+连接开发板对应串口到 PC , 在终端工具里打开相应的串口（115200-8-1-N），复位设备后，在串口上可以看到 RT-Thread 的输出信息:
+
+```bash
+ \ | /
+- RT -     Thread Operating System
+ / | \     4.1.0 build Mar 23 2022
+ 2006 - 2022 Copyright by RT-Thread team
+msh />
+```
+
+## 注意事项
+
+可在雅特力官方网站进行所需资料下载，如Keil_v5/Keil_v4/IAR等pack安装包和AT-START开发板原理图等（www.arterytek.com）
+
+## 联系人信息
+
+维护人:
+
+- [sheltonyu]
@@ -0,0 +1,14 @@
+# for module compiling
+from building import *
+import os
+
+cwd = GetCurrentDir()
+objs = []
+
+list = os.listdir(cwd)
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')
@@ -0,0 +1,62 @@
+import os
+import sys
+import rtconfig
+
+if os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.getenv('RTT_ROOT')
+else:
+    RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
+
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+try:
+    from building import *
+except:
+    print('Cannot found RT-Thread root directory, please check RTT_ROOT')
+    print(RTT_ROOT)
+    exit(-1)
+
+TARGET = 'rtthread.' + rtconfig.TARGET_EXT
+
+DefaultEnvironment(tools=[])
+env = Environment(tools = ['mingw'],
+    AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
+    CC = rtconfig.CC, CFLAGS = rtconfig.CFLAGS,
+    AR = rtconfig.AR, ARFLAGS = '-rc',
+    LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
+env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
+
+if rtconfig.PLATFORM in ['iccarm']:
+    env.Replace(CCCOM = ['$CC $CFLAGS $CPPFLAGS $_CPPDEFFLAGS $_CPPINCFLAGS -o $TARGET $SOURCES'])
+    env.Replace(ARFLAGS = [''])
+    env.Replace(LINKCOM = env["LINKCOM"] + ' --map project.map')
+
+Export('RTT_ROOT')
+Export('rtconfig')
+
+SDK_ROOT = os.path.abspath('./')
+
+if os.path.exists(SDK_ROOT + '/libraries'):
+    libraries_path_prefix = SDK_ROOT + '/libraries'
+else:
+    libraries_path_prefix = os.path.dirname(SDK_ROOT) + '/libraries'
+
+SDK_LIB = libraries_path_prefix
+Export('SDK_LIB')
+
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=False)
+
+at32_library = 'AT32F402_405_Firmware_Library'
+rtconfig.BSP_LIBRARY_TYPE = at32_library
+
+# include libraries
+objs.extend(SConscript(os.path.join(libraries_path_prefix, at32_library, 'SConscript')))
+
+# include usb libraries
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbotg_library', 'SConscript')))
+
+# include drivers
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'rt_drivers', 'SConscript')))
+
+# make a building
+DoBuilding(TARGET, objs)
@@ -0,0 +1,15 @@
+from building import *
+import os
+
+cwd = GetCurrentDir()
+src = Glob('*.c')
+CPPPATH = [cwd]
+
+group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
+
+list = os.listdir(cwd)
+for item in list:
+    if os.path.isfile(os.path.join(cwd, item, 'SConscript')):
+        group = group + SConscript(os.path.join(item, 'SConscript'))
+
+Return('group')
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-10-18     shelton      first version
+ */
+
+#include <rtthread.h>
+#include <rtdevice.h>
+#include "drv_common.h"
+#include "drv_gpio.h"
+
+/* defined the led2 pin: pf4 */
+#define LED2_PIN    GET_PIN(F, 4)
+/* defined the led3 pin: pf5 */
+#define LED3_PIN    GET_PIN(F, 5)
+/* defined the led4 pin: pf6 */
+#define LED4_PIN    GET_PIN(F, 6)
+
+int main(void)
+{
+    rt_uint32_t speed = 200;
+    /* set led2 pin mode to output */
+    rt_pin_mode(LED2_PIN, PIN_MODE_OUTPUT);
+    /* set led3 pin mode to output */
+    rt_pin_mode(LED3_PIN, PIN_MODE_OUTPUT);
+    /* set led4 pin mode to output */
+    rt_pin_mode(LED4_PIN, PIN_MODE_OUTPUT);
+
+    while (1)
+    {
+        rt_pin_write(LED2_PIN, PIN_LOW);
+        rt_thread_mdelay(speed);
+        rt_pin_write(LED3_PIN, PIN_LOW);
+        rt_thread_mdelay(speed);
+        rt_pin_write(LED4_PIN, PIN_LOW);
+        rt_thread_mdelay(speed);
+        rt_pin_write(LED2_PIN, PIN_HIGH);
+        rt_thread_mdelay(speed);
+        rt_pin_write(LED3_PIN, PIN_HIGH);
+        rt_thread_mdelay(speed);
+        rt_pin_write(LED4_PIN, PIN_HIGH);
+        rt_thread_mdelay(speed);
+    }
+}
@@ -0,0 +1,29 @@
+import os
+import rtconfig
+from building import *
+
+Import('SDK_LIB')
+
+cwd = GetCurrentDir()
+
+# add general drivers
+src = Split('''
+src/board.c
+src/at32_msp.c
+''')
+
+path = [cwd]
+path += [cwd + '/inc']
+
+startup_path_prefix = SDK_LIB
+
+if rtconfig.PLATFORM in ['gcc']:
+    src += [startup_path_prefix + '/AT32F402_405_Firmware_Library/cmsis/cm4/device_support/startup/gcc/startup_at32f402_405.s']
+elif rtconfig.PLATFORM in ['armcc', 'armclang']:
+    src += [startup_path_prefix + '/AT32F402_405_Firmware_Library/cmsis/cm4/device_support/startup/mdk/startup_at32f402_405.s']
+elif rtconfig.PLATFORM in ['iccarm']:
+    src += [startup_path_prefix + '/AT32F402_405_Firmware_Library/cmsis/cm4/device_support/startup/iar/startup_at32f402_405.s']
+
+CPPDEFINES = ['AT32F405RCT7']
+group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)
+Return('group')
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-10-18     shelton      first version
+ */
+
+#ifndef __AT32_MSP_H__
+#define __AT32_MSP_H__
+
+void at32_msp_usart_init(void *instance);
+void at32_msp_spi_init(void *instance);
+void at32_msp_tmr_init(void *instance);
+void at32_msp_i2c_init(void *instance);
+void at32_msp_adc_init(void *instance);
+void at32_msp_hwtmr_init(void *instance);
+void at32_msp_can_init(void *instance);
+void at32_msp_qspi_init(void *instance);
+void at32_msp_usb_init(void *instance);
+
+#endif /* __AT32_MSP_H__ */
@@ -0,0 +1,149 @@
+/**
+  **************************************************************************
+  * @file     at32f402_405_conf.h
+  * @brief    at32f402_405 config header file
+  **************************************************************************
+  *                       Copyright notice & Disclaimer
+  *
+  * The software Board Support Package (BSP) that is made available to
+  * download from Artery official website is the copyrighted work of Artery.
+  * Artery authorizes customers to use, copy, and distribute the BSP
+  * software and its related documentation for the purpose of design and
+  * development in conjunction with Artery microcontrollers. Use of the
+  * software is governed by this copyright notice and the following disclaimer.
+  *
+  * THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
+  * GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
+  * TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
+  * STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
+  * INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
+  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
+  *
+  **************************************************************************
+  */
+
+/* define to prevent recursive inclusion -------------------------------------*/
+#ifndef __AT32F402_405_CONF_H
+#define __AT32F402_405_CONF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+  * @brief in the following line adjust the value of high speed external crystal (hext)
+  * used in your application
+  *
+  * tip: to avoid modifying this file each time you need to use different hext, you
+  *      can define the hext value in your toolchain compiler preprocessor.
+  *
+  */
+#if !defined  HEXT_VALUE
+#define HEXT_VALUE                       ((uint32_t)12000000) /*!< value of the high speed external crystal in hz */
+#endif
+
+/**
+  * @brief in the following line adjust the high speed external crystal (hext) startup
+  * timeout value
+  */
+#define HEXT_STARTUP_TIMEOUT             ((uint16_t)0x3000)  /*!< time out for hext start up */
+#define HICK_VALUE                       ((uint32_t)8000000) /*!< value of the high speed internal clock in hz */
+#define LEXT_VALUE                       ((uint32_t)32768)   /*!< value of the low speed external clock in hz */
+
+/* module define -------------------------------------------------------------*/
+#define ACC_MODULE_ENABLED
+#define ADC_MODULE_ENABLED
+#define CAN_MODULE_ENABLED
+#define CRC_MODULE_ENABLED
+#define CRM_MODULE_ENABLED
+#define DEBUG_MODULE_ENABLED
+#define DMA_MODULE_ENABLED
+#define ERTC_MODULE_ENABLED
+#define EXINT_MODULE_ENABLED
+#define FLASH_MODULE_ENABLED
+#define GPIO_MODULE_ENABLED
+#define I2C_MODULE_ENABLED
+#define MISC_MODULE_ENABLED
+#define PWC_MODULE_ENABLED
+#define QSPI_MODULE_ENABLED
+#define SCFG_MODULE_ENABLED
+#define SPI_MODULE_ENABLED
+#define TMR_MODULE_ENABLED
+#define USART_MODULE_ENABLED
+#define USB_MODULE_ENABLED
+#define WDT_MODULE_ENABLED
+#define WWDT_MODULE_ENABLED
+
+/* includes ------------------------------------------------------------------*/
+#ifdef ACC_MODULE_ENABLED
+#include "at32f402_405_acc.h"
+#endif
+#ifdef ADC_MODULE_ENABLED
+#include "at32f402_405_adc.h"
+#endif
+#ifdef CAN_MODULE_ENABLED
+#include "at32f402_405_can.h"
+#endif
+#ifdef CRC_MODULE_ENABLED
+#include "at32f402_405_crc.h"
+#endif
+#ifdef CRM_MODULE_ENABLED
+#include "at32f402_405_crm.h"
+#endif
+#ifdef DEBUG_MODULE_ENABLED
+#include "at32f402_405_debug.h"
+#endif
+#ifdef DMA_MODULE_ENABLED
+#include "at32f402_405_dma.h"
+#endif
+#ifdef ERTC_MODULE_ENABLED
+#include "at32f402_405_ertc.h"
+#endif
+#ifdef EXINT_MODULE_ENABLED
+#include "at32f402_405_exint.h"
+#endif
+#ifdef FLASH_MODULE_ENABLED
+#include "at32f402_405_flash.h"
+#endif
+#ifdef GPIO_MODULE_ENABLED
+#include "at32f402_405_gpio.h"
+#endif
+#ifdef I2C_MODULE_ENABLED
+#include "at32f402_405_i2c.h"
+#endif
+#ifdef MISC_MODULE_ENABLED
+#include "at32f402_405_misc.h"
+#endif
+#ifdef PWC_MODULE_ENABLED
+#include "at32f402_405_pwc.h"
+#endif
+#ifdef QSPI_MODULE_ENABLED
+#include "at32f402_405_qspi.h"
+#endif
+#ifdef SCFG_MODULE_ENABLED
+#include "at32f402_405_scfg.h"
+#endif
+#ifdef SPI_MODULE_ENABLED
+#include "at32f402_405_spi.h"
+#endif
+#ifdef TMR_MODULE_ENABLED
+#include "at32f402_405_tmr.h"
+#endif
+#ifdef USART_MODULE_ENABLED
+#include "at32f402_405_usart.h"
+#endif
+#ifdef USB_MODULE_ENABLED
+#include "at32f402_405_usb.h"
+#endif
+#ifdef WDT_MODULE_ENABLED
+#include "at32f402_405_wdt.h"
+#endif
+#ifdef WWDT_MODULE_ENABLED
+#include "at32f402_405_wwdt.h"
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-03-08     shelton      first version
+ */
+
+#ifndef __BOARD_H__
+#define __BOARD_H__
+
+#include <rtthread.h>
+#include "at32f402_405.h"
+#include "at32_msp.h"
+#include "drv_common.h"
+#include "drv_gpio.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define AT32_FLASH_START_ADRESS         ((uint32_t)0x08000000)
+#define FLASH_PAGE_SIZE                 (2 * 1024)
+#define AT32_FLASH_SIZE                 (256 * 1024)
+#define AT32_FLASH_END_ADDRESS          ((uint32_t)(AT32_FLASH_START_ADRESS + AT32_FLASH_SIZE))
+
+/* internal sram memory size[kbytes] <96>, default: 96*/
+#define AT32_SRAM_SIZE                  96
+#define AT32_SRAM_END                   (0x20000000 + AT32_SRAM_SIZE * 1024)
+
+#if defined(__ARMCC_VERSION)
+extern int Image$$RW_IRAM1$$ZI$$Limit;
+#define HEAP_BEGIN                      ((void *)&Image$$RW_IRAM1$$ZI$$Limit)
+#elif __ICCARM__
+#pragma section="CSTACK"
+#define HEAP_BEGIN                      (__segment_end("CSTACK"))
+#else
+extern int __bss_end;
+#define HEAP_BEGIN                      ((void *)&__bss_end)
+#endif
+
+#define HEAP_END                        AT32_SRAM_END
+
+void system_clock_config(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __BOARD_H__ */
@@ -0,0 +1,28 @@
+/*###ICF### Section handled by ICF editor, don't touch! ****/
+/*-Editor annotation file-*/
+/* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
+/*-Specials-*/
+define symbol __ICFEDIT_intvec_start__ = 0x08000000;
+/*-Memory Regions-*/
+define symbol __ICFEDIT_region_ROM_start__ = 0x08000000;
+define symbol __ICFEDIT_region_ROM_end__   = 0x0803FFFF;
+define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;
+define symbol __ICFEDIT_region_RAM_end__   = 0x20017FFF;
+/*-Sizes-*/
+define symbol __ICFEDIT_size_cstack__ = 0x0400;
+define symbol __ICFEDIT_size_heap__   = 0x0000;
+/**** End of ICF editor section. ###ICF###*/
+
+define memory mem with size = 4G;
+define region ROM_region      = mem:[from __ICFEDIT_region_ROM_start__   to __ICFEDIT_region_ROM_end__];
+define region RAM_region      = mem:[from __ICFEDIT_region_RAM_start__   to __ICFEDIT_region_RAM_end__];
+
+define block CSTACK    with alignment = 8, size = __ICFEDIT_size_cstack__   { };
+
+initialize by copy { readwrite };
+do not initialize  { section .noinit };
+
+place at address mem:__ICFEDIT_intvec_start__ { readonly section .intvec };
+
+place in ROM_region   { readonly };
+place in RAM_region   { readwrite, last block CSTACK};
@@ -0,0 +1,156 @@
+/*
+ * linker script for AT32 with GNU ld
+ */
+
+/* Program Entry, set to mark it as "used" and avoid gc */
+MEMORY
+{
+    ROM (rx) : ORIGIN = 0x08000000, LENGTH = 256k /* 256KB flash */
+    RAM (rw) : ORIGIN = 0x20000000, LENGTH =  96k /* 96K sram */
+}
+ENTRY(Reset_Handler)
+_system_stack_size = 0x200;
+
+SECTIONS
+{
+    .text :
+    {
+        . = ALIGN(4);
+        _stext = .;
+        KEEP(*(.isr_vector))            /* Startup code */
+
+        . = ALIGN(4);
+        *(.text)                        /* remaining code */
+        *(.text.*)                      /* remaining code */
+        *(.rodata)                      /* read-only data (constants) */
+        *(.rodata*)
+        *(.glue_7)
+        *(.glue_7t)
+        *(.gnu.linkonce.t*)
+
+        /* section information for finsh shell */
+        . = ALIGN(4);
+        __fsymtab_start = .;
+        KEEP(*(FSymTab))
+        __fsymtab_end = .;
+
+        . = ALIGN(4);
+        __vsymtab_start = .;
+        KEEP(*(VSymTab))
+        __vsymtab_end = .;
+
+        /* section information for initial. */
+        . = ALIGN(4);
+        __rt_init_start = .;
+        KEEP(*(SORT(.rti_fn*)))
+        __rt_init_end = .;
+
+        . = ALIGN(4);
+
+        PROVIDE(__ctors_start__ = .);
+        KEEP (*(SORT(.init_array.*)))
+        KEEP (*(.init_array))
+        PROVIDE(__ctors_end__ = .);
+
+        . = ALIGN(4);
+
+        _etext = .;
+    } > ROM = 0
+
+    /* .ARM.exidx is sorted, so has to go in its own output section.  */
+    __exidx_start = .;
+    .ARM.exidx :
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+
+        /* This is used by the startup in order to initialize the .data secion */
+        _sidata = .;
+    } > ROM
+    __exidx_end = .;
+
+    /* .data section which is used for initialized data */
+
+    .data : AT (_sidata)
+    {
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .data secion */
+        _sdata = . ;
+
+        *(.data)
+        *(.data.*)
+        *(.gnu.linkonce.d*)
+
+        PROVIDE(__dtors_start__ = .);
+        KEEP(*(SORT(.dtors.*)))
+        KEEP(*(.dtors))
+        PROVIDE(__dtors_end__ = .);
+
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .data secion */
+        _edata = . ;
+    } >RAM
+
+    .stack :
+    {
+        . = ALIGN(4);
+        _sstack = .;
+        . = . + _system_stack_size;
+        . = ALIGN(4);
+        _estack = .;
+    } >RAM
+
+    __bss_start = .;
+    .bss :
+    {
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .bss secion */
+        _sbss = .;
+
+        *(.bss)
+        *(.bss.*)
+        *(COMMON)
+
+        . = ALIGN(4);
+        /* This is used by the startup in order to initialize the .bss secion */
+        _ebss = . ;
+
+        *(.bss.init)
+    } > RAM
+    __bss_end = .;
+
+    _end = .;
+
+    /* Stabs debugging sections.  */
+    .stab          0 : { *(.stab) }
+    .stabstr       0 : { *(.stabstr) }
+    .stab.excl     0 : { *(.stab.excl) }
+    .stab.exclstr  0 : { *(.stab.exclstr) }
+    .stab.index    0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment       0 : { *(.comment) }
+    /* DWARF debug sections.
+     * Symbols in the DWARF debugging sections are relative to the beginning
+     * of the section so we begin them at 0.  */
+    /* DWARF 1 */
+    .debug          0 : { *(.debug) }
+    .line           0 : { *(.line) }
+    /* GNU DWARF 1 extensions */
+    .debug_srcinfo  0 : { *(.debug_srcinfo) }
+    .debug_sfnames  0 : { *(.debug_sfnames) }
+    /* DWARF 1.1 and DWARF 2 */
+    .debug_aranges  0 : { *(.debug_aranges) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    /* DWARF 2 */
+    .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
+    .debug_abbrev   0 : { *(.debug_abbrev) }
+    .debug_line     0 : { *(.debug_line) }
+    .debug_frame    0 : { *(.debug_frame) }
+    .debug_str      0 : { *(.debug_str) }
+    .debug_loc      0 : { *(.debug_loc) }
+    .debug_macinfo  0 : { *(.debug_macinfo) }
+    /* SGI/MIPS DWARF 2 extensions */
+    .debug_weaknames 0 : { *(.debug_weaknames) }
+    .debug_funcnames 0 : { *(.debug_funcnames) }
+    .debug_typenames 0 : { *(.debug_typenames) }
+    .debug_varnames  0 : { *(.debug_varnames) }
+}
@@ -0,0 +1,15 @@
+; *************************************************************
+; *** Scatter-Loading Description File generated by uVision ***
+; *************************************************************
+
+LR_IROM1 0x08000000 0x00040000  {    ; load region size_region
+  ER_IROM1 0x08000000 0x00040000  {  ; load address = execution address
+   *.o (RESET, +First)
+   *(InRoot$$Sections)
+   .ANY (+RO)
+  }
+  RW_IRAM1 0x20000000 0x00018000  {  ; RW data
+   .ANY (+RW +ZI)
+  }
+}
+
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-10-18     shelton      first version
+ */
+
+#include "board.h"
+
+void system_clock_config(void)
+{
+  /* reset crm */
+  crm_reset();
+
+  /* config flash psr register */
+  flash_psr_set(FLASH_WAIT_CYCLE_6);
+
+  /* enable pwc periph clock */
+  crm_periph_clock_enable(CRM_PWC_PERIPH_CLOCK, TRUE);
+
+  /* set power ldo output voltage to 1.3v */
+  pwc_ldo_output_voltage_set(PWC_LDO_OUTPUT_1V3);
+
+  crm_clock_source_enable(CRM_CLOCK_SOURCE_HEXT, TRUE);
+
+  /* wait till hext is ready */
+  while(crm_hext_stable_wait() == ERROR)
+  {
+  }
+
+  /* if pll parameter has changed, please use the AT32_New_Clock_Configuration tool for new configuration. */
+  crm_pll_config(CRM_PLL_SOURCE_HEXT, 72, 1, CRM_PLL_FP_4);
+
+  /* config pllu div */
+  crm_pllu_div_set(CRM_PLL_FU_18);
+
+  /* enable pll */
+  crm_clock_source_enable(CRM_CLOCK_SOURCE_PLL, TRUE);
+
+  /* wait till pll is ready */
+  while(crm_flag_get(CRM_PLL_STABLE_FLAG) != SET)
+  {
+  }
+
+  /* config ahbclk */
+  crm_ahb_div_set(CRM_AHB_DIV_1);
+
+  /* config apb2clk, the maximum frequency of APB2 clock is 216 MHz */
+  crm_apb2_div_set(CRM_APB2_DIV_1);
+
+  /* config apb1clk, the maximum frequency of APB1 clock is 120 MHz */
+  crm_apb1_div_set(CRM_APB1_DIV_2);
+
+  /* enable auto step mode */
+  crm_auto_step_mode_enable(TRUE);
+
+  /* select pll as system clock source */
+  crm_sysclk_switch(CRM_SCLK_PLL);
+
+  /* wait till pll is used as system clock source */
+  while(crm_sysclk_switch_status_get() != CRM_SCLK_PLL)
+  {
+  }
+
+  /* disable auto step mode */
+  crm_auto_step_mode_enable(FALSE);
+
+  /* update system_core_clock global variable */
+  system_core_clock_update();
+}
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+
+<workspace>
+  <project>
+    <path>$WS_DIR$\project.ewp</path>
+  </project>
+  <batchBuild/>
+</workspace>
+
+
@@ -0,0 +1,167 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<ProjectOpt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_opt.xsd">
+
+  <SchemaVersion>1.0</SchemaVersion>
+
+  <Header>### uVision Project, (C) Keil Software</Header>
+
+  <Extensions>
+    <cExt>*.c</cExt>
+    <aExt>*.s*; *.src; *.a*</aExt>
+    <oExt>*.obj</oExt>
+    <lExt>*.lib</lExt>
+    <tExt>*.txt; *.h; *.inc; *.md</tExt>
+    <pExt>*.plm</pExt>
+    <CppX>*.cpp</CppX>
+  </Extensions>
+
+  <DaveTm>
+    <dwLowDateTime>0</dwLowDateTime>
+    <dwHighDateTime>0</dwHighDateTime>
+  </DaveTm>
+
+  <Target>
+    <TargetName>rt-thread</TargetName>
+    <ToolsetNumber>0x4</ToolsetNumber>
+    <ToolsetName>ARM-ADS</ToolsetName>
+    <TargetOption>
+      <CLKADS>8000000</CLKADS>
+      <OPTTT>
+        <gFlags>1</gFlags>
+        <BeepAtEnd>1</BeepAtEnd>
+        <RunSim>1</RunSim>
+        <RunTarget>0</RunTarget>
+      </OPTTT>
+      <OPTHX>
+        <HexSelection>1</HexSelection>
+        <FlashByte>65535</FlashByte>
+        <HexRangeLowAddress>0</HexRangeLowAddress>
+        <HexRangeHighAddress>0</HexRangeHighAddress>
+        <HexOffset>0</HexOffset>
+      </OPTHX>
+      <OPTLEX>
+        <PageWidth>79</PageWidth>
+        <PageLength>66</PageLength>
+        <TabStop>8</TabStop>
+        <ListingPath>.\build\keil\List\</ListingPath>
+      </OPTLEX>
+      <ListingPage>
+        <CreateCListing>1</CreateCListing>
+        <CreateAListing>1</CreateAListing>
+        <CreateLListing>1</CreateLListing>
+        <CreateIListing>0</CreateIListing>
+        <AsmCond>1</AsmCond>
+        <AsmSymb>1</AsmSymb>
+        <AsmXref>0</AsmXref>
+        <CCond>1</CCond>
+        <CCode>0</CCode>
+        <CListInc>0</CListInc>
+        <CSymb>0</CSymb>
+        <LinkerCodeListing>0</LinkerCodeListing>
+      </ListingPage>
+      <OPTXL>
+        <LMap>1</LMap>
+        <LComments>1</LComments>
+        <LGenerateSymbols>1</LGenerateSymbols>
+        <LLibSym>1</LLibSym>
+        <LLines>1</LLines>
+        <LLocSym>1</LLocSym>
+        <LPubSym>1</LPubSym>
+        <LXref>0</LXref>
+        <LExpSel>0</LExpSel>
+      </OPTXL>
+      <OPTFL>
+        <tvExp>0</tvExp>
+        <tvExpOptDlg>0</tvExpOptDlg>
+        <IsCurrentTarget>1</IsCurrentTarget>
+      </OPTFL>
+      <CpuCode>0</CpuCode>
+      <DebugOpt>
+        <uSim>0</uSim>
+        <uTrg>1</uTrg>
+        <sLdApp>1</sLdApp>
+        <sGomain>1</sGomain>
+        <sRbreak>1</sRbreak>
+        <sRwatch>1</sRwatch>
+        <sRmem>1</sRmem>
+        <sRfunc>1</sRfunc>
+        <sRbox>1</sRbox>
+        <tLdApp>1</tLdApp>
+        <tGomain>1</tGomain>
+        <tRbreak>1</tRbreak>
+        <tRwatch>1</tRwatch>
+        <tRmem>1</tRmem>
+        <tRfunc>0</tRfunc>
+        <tRbox>1</tRbox>
+        <tRtrace>0</tRtrace>
+        <sRSysVw>1</sRSysVw>
+        <tRSysVw>1</tRSysVw>
+        <tPdscDbg>0</tPdscDbg>
+        <sRunDeb>0</sRunDeb>
+        <sLrtime>0</sLrtime>
+        <nTsel>12</nTsel>
+        <sDll></sDll>
+        <sDllPa></sDllPa>
+        <sDlgDll></sDlgDll>
+        <sDlgPa></sDlgPa>
+        <sIfile></sIfile>
+        <tDll></tDll>
+        <tDllPa></tDllPa>
+        <tDlgDll></tDlgDll>
+        <tDlgPa></tDlgPa>
+        <tIfile></tIfile>
+        <pMon>BIN\CMSIS_AGDI.dll</pMon>
+      </DebugOpt>
+      <TargetDriverDllRegistry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>CMSIS_AGDI</Key>
+          <Name>-X"AT-Link-EZ CMSIS-DAP" -UB11CE9B210C0765905170807 -O78 -S0 -C0 -P00 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(0) -FO7 -FD20000000 -FC800 -FN1 -FF0AT32F405_256 -FS08000000 -FL040000</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>JL2CM3</Key>
+          <Name>-U788529815 -O78 -S0 -A0 -C0 -JU1 -JI127.0.0.1 -JP0 -RST0 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(4) -TO18 -TC10000000 -TP21 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -TB1 -TFE0 -FO15 -FD20000000 -FC800 -FN1 -FF0AT32F403A_1024 -FS08000000 -FL0100000</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>UL2CM3</Key>
+          <Name>UL2CM3(-O14 -S0 -C0 -N00("ARM Cortex-M3") -D00(1BA00477) -L00(4) -FO7  -FN1 -FC800 -FD20000000 -FF0AT32F405_256 -FL040000 -FS08000000</Name>
+        </SetRegEntry>
+      </TargetDriverDllRegistry>
+      <Breakpoint/>
+      <Tracepoint>
+        <THDelay>0</THDelay>
+      </Tracepoint>
+      <DebugFlag>
+        <trace>0</trace>
+        <periodic>0</periodic>
+        <aLwin>0</aLwin>
+        <aCover>0</aCover>
+        <aSer1>0</aSer1>
+        <aSer2>0</aSer2>
+        <aPa>0</aPa>
+        <viewmode>0</viewmode>
+        <vrSel>0</vrSel>
+        <aSym>0</aSym>
+        <aTbox>0</aTbox>
+        <AscS1>0</AscS1>
+        <AscS2>0</AscS2>
+        <AscS3>0</AscS3>
+        <aSer3>0</aSer3>
+        <eProf>0</eProf>
+        <aLa>0</aLa>
+        <aPa1>0</aPa1>
+        <AscS4>0</AscS4>
+        <aSer4>0</aSer4>
+        <StkLoc>0</StkLoc>
+        <TrcWin>0</TrcWin>
+        <newCpu>1</newCpu>
+        <uProt>0</uProt>
+      </DebugFlag>
+      <LintExecutable></LintExecutable>
+      <LintConfigFile></LintConfigFile>
+    </TargetOption>
+  </Target>
+
+</ProjectOpt>
@@ -0,0 +1,182 @@
+#ifndef RT_CONFIG_H__
+#define RT_CONFIG_H__
+
+/* Automatically generated file; DO NOT EDIT. */
+/* RT-Thread Configuration */
+
+/* RT-Thread Kernel */
+
+#define RT_NAME_MAX 8
+#define RT_ALIGN_SIZE 8
+#define RT_THREAD_PRIORITY_32
+#define RT_THREAD_PRIORITY_MAX 32
+#define RT_TICK_PER_SECOND 1000
+#define RT_USING_OVERFLOW_CHECK
+#define RT_USING_HOOK
+#define RT_HOOK_USING_FUNC_PTR
+#define RT_USING_IDLE_HOOK
+#define RT_IDLE_HOOK_LIST_SIZE 4
+#define IDLE_THREAD_STACK_SIZE 512
+#define RT_USING_TIMER_SOFT
+#define RT_TIMER_THREAD_PRIO 4
+#define RT_TIMER_THREAD_STACK_SIZE 512
+
+/* kservice optimization */
+
+#define RT_USING_DEBUG
+#define RT_DEBUGING_COLOR
+#define RT_DEBUGING_CONTEXT
+#define RT_DEBUGING_INIT
+
+/* Inter-Thread communication */
+
+#define RT_USING_SEMAPHORE
+#define RT_USING_MUTEX
+#define RT_USING_EVENT
+#define RT_USING_MAILBOX
+#define RT_USING_MESSAGEQUEUE
+
+/* Memory Management */
+
+#define RT_USING_MEMPOOL
+#define RT_USING_SMALL_MEM
+#define RT_USING_MEMHEAP
+#define RT_MEMHEAP_FAST_MODE
+#define RT_USING_SMALL_MEM_AS_HEAP
+#define RT_USING_HEAP
+
+/* Kernel Device Object */
+
+#define RT_USING_DEVICE
+#define RT_USING_CONSOLE
+#define RT_CONSOLEBUF_SIZE 128
+#define RT_CONSOLE_DEVICE_NAME "uart1"
+#define RT_VER_NUM 0x50001
+#define RT_USING_HW_ATOMIC
+#define RT_USING_CPU_FFS
+#define ARCH_ARM
+#define ARCH_ARM_CORTEX_M
+#define ARCH_ARM_CORTEX_M4
+
+/* RT-Thread Components */
+
+#define RT_USING_COMPONENTS_INIT
+#define RT_USING_USER_MAIN
+#define RT_MAIN_THREAD_STACK_SIZE 2048
+#define RT_MAIN_THREAD_PRIORITY 10
+#define RT_USING_MSH
+#define RT_USING_FINSH
+#define FINSH_USING_MSH
+#define FINSH_THREAD_NAME "tshell"
+#define FINSH_THREAD_PRIORITY 20
+#define FINSH_THREAD_STACK_SIZE 4096
+#define FINSH_USING_HISTORY
+#define FINSH_HISTORY_LINES 5
+#define FINSH_USING_SYMTAB
+#define FINSH_CMD_SIZE 80
+#define MSH_USING_BUILT_IN_COMMANDS
+#define FINSH_USING_DESCRIPTION
+#define FINSH_ARG_MAX 10
+
+/* DFS: device virtual file system */
+
+
+/* Device Drivers */
+
+#define RT_USING_DEVICE_IPC
+#define RT_UNAMED_PIPE_NUMBER 64
+#define RT_USING_SERIAL
+#define RT_USING_SERIAL_V1
+#define RT_SERIAL_USING_DMA
+#define RT_SERIAL_RB_BUFSZ 64
+#define RT_USING_PIN
+
+/* Using USB */
+
+
+/* C/C++ and POSIX layer */
+
+/* ISO-ANSI C layer */
+
+/* Timezone and Daylight Saving Time */
+
+#define RT_LIBC_USING_LIGHT_TZ_DST
+#define RT_LIBC_TZ_DEFAULT_HOUR 8
+#define RT_LIBC_TZ_DEFAULT_MIN 0
+#define RT_LIBC_TZ_DEFAULT_SEC 0
+
+/* POSIX (Portable Operating System Interface) layer */
+
+
+/* Interprocess Communication (IPC) */
+
+
+/* Socket is in the 'Network' category */
+
+
+/* Network */
+
+
+/* Utilities */
+
+
+/* RT-Thread Utestcases */
+
+
+/* RT-Thread online packages */
+
+/* IoT - internet of things */
+
+
+/* Wi-Fi */
+
+/* Marvell WiFi */
+
+
+/* Wiced WiFi */
+
+
+/* IoT Cloud */
+
+
+/* security packages */
+
+
+/* language packages */
+
+
+/* multimedia packages */
+
+
+/* tools packages */
+
+
+/* system packages */
+
+
+/* peripheral libraries and drivers */
+
+
+/* miscellaneous packages */
+
+
+/* samples: kernel and components samples */
+
+#define SOC_FAMILY_AT32
+#define SOC_SERIES_AT32F405
+
+/* Hardware Drivers Config */
+
+#define SOC_AT32F405RCT7
+
+/* Onboard Peripheral Drivers */
+
+#define BSP_USING_SERIAL
+
+/* On-chip Peripheral Drivers */
+
+#define BSP_USING_GPIO
+#define BSP_USING_UART
+#define BSP_USING_UART1
+
+#endif
@@ -0,0 +1,150 @@
+import os
+
+# toolchains options
+ARCH='arm'
+CPU='cortex-m4'
+CROSS_TOOL='gcc'
+
+# bsp lib config
+BSP_LIBRARY_TYPE = None
+
+if os.getenv('RTT_CC'):
+    CROSS_TOOL = os.getenv('RTT_CC')
+if os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.getenv('RTT_ROOT')
+
+# cross_tool provides the cross compiler
+# EXEC_PATH is the compiler execute path, for example, CodeSourcery, Keil MDK, IAR
+if  CROSS_TOOL == 'gcc':
+    PLATFORM    = 'gcc'
+    EXEC_PATH   = r'C:\Users\XXYYZZ'
+elif CROSS_TOOL == 'keil':
+    PLATFORM    = 'armcc'
+    EXEC_PATH   = r'C:/Keil_v5'
+elif CROSS_TOOL == 'iar':
+    PLATFORM    = 'iccarm'
+    EXEC_PATH   = r'C:/Program Files (x86)/IAR Systems/Embedded Workbench 8.3'
+
+if os.getenv('RTT_EXEC_PATH'):
+    EXEC_PATH = os.getenv('RTT_EXEC_PATH')
+
+BUILD = 'debug'
+
+if PLATFORM == 'gcc':
+    # toolchains
+    PREFIX = 'arm-none-eabi-'
+    CC = PREFIX + 'gcc'
+    AS = PREFIX + 'gcc'
+    AR = PREFIX + 'ar'
+    CXX = PREFIX + 'g++'
+    LINK = PREFIX + 'gcc'
+    TARGET_EXT = 'elf'
+    SIZE = PREFIX + 'size'
+    OBJDUMP = PREFIX + 'objdump'
+    OBJCPY = PREFIX + 'objcopy'
+
+    DEVICE = ' -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=hard -ffunction-sections -fdata-sections'
+    CFLAGS = DEVICE + ' -Dgcc'
+    AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -Wa,-mimplicit-it=thumb '
+    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rt-thread.map,-cref,-u,Reset_Handler -T board/linker_scripts/link.lds'
+
+    CPATH = ''
+    LPATH = ''
+
+    if BUILD == 'debug':
+        CFLAGS += ' -O0 -gdwarf-2 -g'
+        AFLAGS += ' -gdwarf-2'
+    else:
+        CFLAGS += ' -O2'
+
+    CXXFLAGS = CFLAGS
+
+    POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
+
+elif PLATFORM == 'armcc':
+    # toolchains
+    CC = 'armcc'
+    CXX = 'armcc'
+    AS = 'armasm'
+    AR = 'armar'
+    LINK = 'armlink'
+    TARGET_EXT = 'axf'
+
+    DEVICE = ' --cpu Cortex-M4.fp '
+    CFLAGS = '-c ' + DEVICE + ' --apcs=interwork --c99'
+    AFLAGS = DEVICE + ' --apcs=interwork '
+    LFLAGS = DEVICE + ' --scatter "board\linker_scripts\link.sct" --info sizes --info totals --info unused --info veneers --list rt-thread.map --strict'
+    CFLAGS += ' -I' + EXEC_PATH + '/ARM/ARMCC/include'
+    LFLAGS += ' --libpath=' + EXEC_PATH + '/ARM/ARMCC/lib'
+
+    CFLAGS += ' -D__MICROLIB '
+    AFLAGS += ' --pd "__MICROLIB SETA 1" '
+    LFLAGS += ' --library_type=microlib '
+    EXEC_PATH += '/ARM/ARMCC/bin/'
+
+    if BUILD == 'debug':
+        CFLAGS += ' -g -O0'
+        AFLAGS += ' -g'
+    else:
+        CFLAGS += ' -O2'
+
+    CXXFLAGS = CFLAGS
+    CFLAGS += ' -std=c99'
+
+    POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
+
+elif PLATFORM == 'iccarm':
+    # toolchains
+    CC = 'iccarm'
+    CXX = 'iccarm'
+    AS = 'iasmarm'
+    AR = 'iarchive'
+    LINK = 'ilinkarm'
+    TARGET_EXT = 'out'
+
+    DEVICE = '-Dewarm'
+
+    CFLAGS = DEVICE
+    CFLAGS += ' --diag_suppress Pa050'
+    CFLAGS += ' --no_cse'
+    CFLAGS += ' --no_unroll'
+    CFLAGS += ' --no_inline'
+    CFLAGS += ' --no_code_motion'
+    CFLAGS += ' --no_tbaa'
+    CFLAGS += ' --no_clustering'
+    CFLAGS += ' --no_scheduling'
+    CFLAGS += ' --endian=little'
+    CFLAGS += ' --cpu=Cortex-M4'
+    CFLAGS += ' -e'
+    CFLAGS += ' --fpu=VFPv4_sp'
+    CFLAGS += ' --dlib_config "' + EXEC_PATH + '/arm/INC/c/DLib_Config_Normal.h"'
+    CFLAGS += ' --silent'
+
+    AFLAGS = DEVICE
+    AFLAGS += ' -s+'
+    AFLAGS += ' -w+'
+    AFLAGS += ' -r'
+    AFLAGS += ' --cpu Cortex-M4'
+    AFLAGS += ' --fpu VFPv4_sp'
+    AFLAGS += ' -S'
+
+    if BUILD == 'debug':
+        CFLAGS += ' --debug'
+        CFLAGS += ' -On'
+    else:
+        CFLAGS += ' -Oh'
+
+    LFLAGS = ' --config "board/linker_scripts/link.icf"'
+    LFLAGS += ' --entry __iar_program_start'
+
+    CXXFLAGS = CFLAGS
+
+    EXEC_PATH = EXEC_PATH + '/arm/bin/'
+    POST_ACTION = 'ielftool --bin $TARGET rtthread.bin'
+
+def dist_handle(BSP_ROOT, dist_dir):
+    import sys
+    cwd_path = os.getcwd()
+    sys.path.append(os.path.join(os.path.dirname(BSP_ROOT), 'tools'))
+    from sdk_dist import dist_do_building
+    dist_do_building(BSP_ROOT, dist_dir)
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+
+<workspace>
+  <project>
+    <path>$WS_DIR$\template.ewp</path>
+  </project>
+  <batchBuild/>
+</workspace>
+
+
@@ -0,0 +1,167 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<ProjectOpt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_opt.xsd">
+
+  <SchemaVersion>1.0</SchemaVersion>
+
+  <Header>### uVision Project, (C) Keil Software</Header>
+
+  <Extensions>
+    <cExt>*.c</cExt>
+    <aExt>*.s*; *.src; *.a*</aExt>
+    <oExt>*.obj</oExt>
+    <lExt>*.lib</lExt>
+    <tExt>*.txt; *.h; *.inc; *.md</tExt>
+    <pExt>*.plm</pExt>
+    <CppX>*.cpp</CppX>
+  </Extensions>
+
+  <DaveTm>
+    <dwLowDateTime>0</dwLowDateTime>
+    <dwHighDateTime>0</dwHighDateTime>
+  </DaveTm>
+
+  <Target>
+    <TargetName>rt-thread</TargetName>
+    <ToolsetNumber>0x4</ToolsetNumber>
+    <ToolsetName>ARM-ADS</ToolsetName>
+    <TargetOption>
+      <CLKADS>8000000</CLKADS>
+      <OPTTT>
+        <gFlags>1</gFlags>
+        <BeepAtEnd>1</BeepAtEnd>
+        <RunSim>1</RunSim>
+        <RunTarget>0</RunTarget>
+      </OPTTT>
+      <OPTHX>
+        <HexSelection>1</HexSelection>
+        <FlashByte>65535</FlashByte>
+        <HexRangeLowAddress>0</HexRangeLowAddress>
+        <HexRangeHighAddress>0</HexRangeHighAddress>
+        <HexOffset>0</HexOffset>
+      </OPTHX>
+      <OPTLEX>
+        <PageWidth>79</PageWidth>
+        <PageLength>66</PageLength>
+        <TabStop>8</TabStop>
+        <ListingPath>.\build\keil\List\</ListingPath>
+      </OPTLEX>
+      <ListingPage>
+        <CreateCListing>1</CreateCListing>
+        <CreateAListing>1</CreateAListing>
+        <CreateLListing>1</CreateLListing>
+        <CreateIListing>0</CreateIListing>
+        <AsmCond>1</AsmCond>
+        <AsmSymb>1</AsmSymb>
+        <AsmXref>0</AsmXref>
+        <CCond>1</CCond>
+        <CCode>0</CCode>
+        <CListInc>0</CListInc>
+        <CSymb>0</CSymb>
+        <LinkerCodeListing>0</LinkerCodeListing>
+      </ListingPage>
+      <OPTXL>
+        <LMap>1</LMap>
+        <LComments>1</LComments>
+        <LGenerateSymbols>1</LGenerateSymbols>
+        <LLibSym>1</LLibSym>
+        <LLines>1</LLines>
+        <LLocSym>1</LLocSym>
+        <LPubSym>1</LPubSym>
+        <LXref>0</LXref>
+        <LExpSel>0</LExpSel>
+      </OPTXL>
+      <OPTFL>
+        <tvExp>0</tvExp>
+        <tvExpOptDlg>0</tvExpOptDlg>
+        <IsCurrentTarget>1</IsCurrentTarget>
+      </OPTFL>
+      <CpuCode>0</CpuCode>
+      <DebugOpt>
+        <uSim>0</uSim>
+        <uTrg>1</uTrg>
+        <sLdApp>1</sLdApp>
+        <sGomain>1</sGomain>
+        <sRbreak>1</sRbreak>
+        <sRwatch>1</sRwatch>
+        <sRmem>1</sRmem>
+        <sRfunc>1</sRfunc>
+        <sRbox>1</sRbox>
+        <tLdApp>1</tLdApp>
+        <tGomain>1</tGomain>
+        <tRbreak>1</tRbreak>
+        <tRwatch>1</tRwatch>
+        <tRmem>1</tRmem>
+        <tRfunc>0</tRfunc>
+        <tRbox>1</tRbox>
+        <tRtrace>0</tRtrace>
+        <sRSysVw>1</sRSysVw>
+        <tRSysVw>1</tRSysVw>
+        <tPdscDbg>0</tPdscDbg>
+        <sRunDeb>0</sRunDeb>
+        <sLrtime>0</sLrtime>
+        <nTsel>12</nTsel>
+        <sDll></sDll>
+        <sDllPa></sDllPa>
+        <sDlgDll></sDlgDll>
+        <sDlgPa></sDlgPa>
+        <sIfile></sIfile>
+        <tDll></tDll>
+        <tDllPa></tDllPa>
+        <tDlgDll></tDlgDll>
+        <tDlgPa></tDlgPa>
+        <tIfile></tIfile>
+        <pMon>BIN\CMSIS_AGDI.dll</pMon>
+      </DebugOpt>
+      <TargetDriverDllRegistry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>CMSIS_AGDI</Key>
+          <Name>-X"AT-Link-EZ CMSIS-DAP" -UB11CE9B210C0765905170807 -O78 -S0 -C0 -P00 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(0) -FO7 -FD20000000 -FC800 -FN1 -FF0AT32F405_256 -FS08000000 -FL040000</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>JL2CM3</Key>
+          <Name>-U788529815 -O78 -S0 -A0 -C0 -JU1 -JI127.0.0.1 -JP0 -RST0 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(4) -TO18 -TC10000000 -TP21 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -TB1 -TFE0 -FO15 -FD20000000 -FC800 -FN1 -FF0AT32F403A_1024 -FS08000000 -FL0100000</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>UL2CM3</Key>
+          <Name>UL2CM3(-O14 -S0 -C0 -N00("ARM Cortex-M3") -D00(1BA00477) -L00(4) -FO7  -FN1 -FC800 -FD20000000 -FF0AT32F405_256 -FL040000 -FS08000000</Name>
+        </SetRegEntry>
+      </TargetDriverDllRegistry>
+      <Breakpoint/>
+      <Tracepoint>
+        <THDelay>0</THDelay>
+      </Tracepoint>
+      <DebugFlag>
+        <trace>0</trace>
+        <periodic>0</periodic>
+        <aLwin>0</aLwin>
+        <aCover>0</aCover>
+        <aSer1>0</aSer1>
+        <aSer2>0</aSer2>
+        <aPa>0</aPa>
+        <viewmode>0</viewmode>
+        <vrSel>0</vrSel>
+        <aSym>0</aSym>
+        <aTbox>0</aTbox>
+        <AscS1>0</AscS1>
+        <AscS2>0</AscS2>
+        <AscS3>0</AscS3>
+        <aSer3>0</aSer3>
+        <eProf>0</eProf>
+        <aLa>0</aLa>
+        <aPa1>0</aPa1>
+        <AscS4>0</AscS4>
+        <aSer4>0</aSer4>
+        <StkLoc>0</StkLoc>
+        <TrcWin>0</TrcWin>
+        <newCpu>1</newCpu>
+        <uProt>0</uProt>
+      </DebugFlag>
+      <LintExecutable></LintExecutable>
+      <LintConfigFile></LintConfigFile>
+    </TargetOption>
+  </Target>
+
+</ProjectOpt>
@@ -0,0 +1,185 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
+<ProjectOpt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_optx.xsd">
+
+  <SchemaVersion>1.0</SchemaVersion>
+
+  <Header>### uVision Project, (C) Keil Software</Header>
+
+  <Extensions>
+    <cExt>*.c</cExt>
+    <aExt>*.s*; *.src; *.a*</aExt>
+    <oExt>*.obj; *.o</oExt>
+    <lExt>*.lib</lExt>
+    <tExt>*.txt; *.h; *.inc; *.md</tExt>
+    <pExt>*.plm</pExt>
+    <CppX>*.cpp</CppX>
+    <nMigrate>0</nMigrate>
+  </Extensions>
+
+  <DaveTm>
+    <dwLowDateTime>0</dwLowDateTime>
+    <dwHighDateTime>0</dwHighDateTime>
+  </DaveTm>
+
+  <Target>
+    <TargetName>rt-thread</TargetName>
+    <ToolsetNumber>0x4</ToolsetNumber>
+    <ToolsetName>ARM-ADS</ToolsetName>
+    <TargetOption>
+      <CLKADS>12000000</CLKADS>
+      <OPTTT>
+        <gFlags>1</gFlags>
+        <BeepAtEnd>1</BeepAtEnd>
+        <RunSim>0</RunSim>
+        <RunTarget>1</RunTarget>
+        <RunAbUc>0</RunAbUc>
+      </OPTTT>
+      <OPTHX>
+        <HexSelection>1</HexSelection>
+        <FlashByte>65535</FlashByte>
+        <HexRangeLowAddress>0</HexRangeLowAddress>
+        <HexRangeHighAddress>0</HexRangeHighAddress>
+        <HexOffset>0</HexOffset>
+      </OPTHX>
+      <OPTLEX>
+        <PageWidth>79</PageWidth>
+        <PageLength>66</PageLength>
+        <TabStop>8</TabStop>
+        <ListingPath>.\build\keil\List\</ListingPath>
+      </OPTLEX>
+      <ListingPage>
+        <CreateCListing>1</CreateCListing>
+        <CreateAListing>1</CreateAListing>
+        <CreateLListing>1</CreateLListing>
+        <CreateIListing>0</CreateIListing>
+        <AsmCond>1</AsmCond>
+        <AsmSymb>1</AsmSymb>
+        <AsmXref>0</AsmXref>
+        <CCond>1</CCond>
+        <CCode>0</CCode>
+        <CListInc>0</CListInc>
+        <CSymb>0</CSymb>
+        <LinkerCodeListing>0</LinkerCodeListing>
+      </ListingPage>
+      <OPTXL>
+        <LMap>1</LMap>
+        <LComments>1</LComments>
+        <LGenerateSymbols>1</LGenerateSymbols>
+        <LLibSym>1</LLibSym>
+        <LLines>1</LLines>
+        <LLocSym>1</LLocSym>
+        <LPubSym>1</LPubSym>
+        <LXref>0</LXref>
+        <LExpSel>0</LExpSel>
+      </OPTXL>
+      <OPTFL>
+        <tvExp>1</tvExp>
+        <tvExpOptDlg>0</tvExpOptDlg>
+        <IsCurrentTarget>1</IsCurrentTarget>
+      </OPTFL>
+      <CpuCode>255</CpuCode>
+      <DebugOpt>
+        <uSim>0</uSim>
+        <uTrg>1</uTrg>
+        <sLdApp>1</sLdApp>
+        <sGomain>1</sGomain>
+        <sRbreak>1</sRbreak>
+        <sRwatch>1</sRwatch>
+        <sRmem>1</sRmem>
+        <sRfunc>1</sRfunc>
+        <sRbox>1</sRbox>
+        <tLdApp>1</tLdApp>
+        <tGomain>1</tGomain>
+        <tRbreak>1</tRbreak>
+        <tRwatch>1</tRwatch>
+        <tRmem>1</tRmem>
+        <tRfunc>0</tRfunc>
+        <tRbox>1</tRbox>
+        <tRtrace>1</tRtrace>
+        <sRSysVw>1</sRSysVw>
+        <tRSysVw>1</tRSysVw>
+        <sRunDeb>0</sRunDeb>
+        <sLrtime>0</sLrtime>
+        <bEvRecOn>1</bEvRecOn>
+        <bSchkAxf>0</bSchkAxf>
+        <bTchkAxf>0</bTchkAxf>
+        <nTsel>3</nTsel>
+        <sDll></sDll>
+        <sDllPa></sDllPa>
+        <sDlgDll></sDlgDll>
+        <sDlgPa></sDlgPa>
+        <sIfile></sIfile>
+        <tDll></tDll>
+        <tDllPa></tDllPa>
+        <tDlgDll></tDlgDll>
+        <tDlgPa></tDlgPa>
+        <tIfile></tIfile>
+        <pMon>BIN\CMSIS_AGDI.dll</pMon>
+      </DebugOpt>
+      <TargetDriverDllRegistry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>UL2CM3</Key>
+          <Name>UL2CM3(-S0 -C0 -P0 )  -FN1 -FC1000 -FD20000000 -FF0AT32F405_256 -FL040000 -FS08000000 -FP0($$Device:AT32F405RCT7$Flash\AT32F405_256.FLM)</Name>
+        </SetRegEntry>
+        <SetRegEntry>
+          <Number>0</Number>
+          <Key>CMSIS_AGDI</Key>
+          <Name>-X"Any" -UAny -O206 -S0 -C0 -P00000000 -N00("ARM CoreSight SW-DP") -D00(2BA01477) -L00(0) -TO65554 -TC10000000 -TT10000000 -TP20 -TDS8007 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -FO7 -FD20000000 -FC1000 -FN1 -FF0AT32F405_256.FLM -FS08000000 -FL040000 -FP0($$Device:AT32F405RCT7$Flash\AT32F405_256.FLM)</Name>
+        </SetRegEntry>
+      </TargetDriverDllRegistry>
+      <Breakpoint/>
+      <Tracepoint>
+        <THDelay>0</THDelay>
+      </Tracepoint>
+      <DebugFlag>
+        <trace>0</trace>
+        <periodic>0</periodic>
+        <aLwin>0</aLwin>
+        <aCover>0</aCover>
+        <aSer1>0</aSer1>
+        <aSer2>0</aSer2>
+        <aPa>0</aPa>
+        <viewmode>0</viewmode>
+        <vrSel>0</vrSel>
+        <aSym>0</aSym>
+        <aTbox>0</aTbox>
+        <AscS1>0</AscS1>
+        <AscS2>0</AscS2>
+        <AscS3>0</AscS3>
+        <aSer3>0</aSer3>
+        <eProf>0</eProf>
+        <aLa>0</aLa>
+        <aPa1>0</aPa1>
+        <AscS4>0</AscS4>
+        <aSer4>0</aSer4>
+        <StkLoc>0</StkLoc>
+        <TrcWin>0</TrcWin>
+        <newCpu>0</newCpu>
+        <uProt>0</uProt>
+      </DebugFlag>
+      <LintExecutable></LintExecutable>
+      <LintConfigFile></LintConfigFile>
+      <bLintAuto>0</bLintAuto>
+      <bAutoGenD>0</bAutoGenD>
+      <LntExFlags>0</LntExFlags>
+      <pMisraName></pMisraName>
+      <pszMrule></pszMrule>
+      <pSingCmds></pSingCmds>
+      <pMultCmds></pMultCmds>
+      <pMisraNamep></pMisraNamep>
+      <pszMrulep></pszMrulep>
+      <pSingCmdsp></pSingCmdsp>
+      <pMultCmdsp></pMultCmdsp>
+    </TargetOption>
+  </Target>
+
+  <Group>
+    <GroupName>Source Group 1</GroupName>
+    <tvExp>0</tvExp>
+    <tvExpOptDlg>0</tvExpOptDlg>
+    <cbSel>0</cbSel>
+    <RteFlg>0</RteFlg>
+  </Group>
+
+</ProjectOpt>
@@ -351,28 +351,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
          <state>$PROJ_DIR$\..\libraries\usbd_library\inc</state>
          <state>$PROJ_DIR$\applications</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -1398,28 +1397,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
          <state>$PROJ_DIR$\..\libraries\usbd_library\inc</state>
          <state>$PROJ_DIR$\applications</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -2105,6 +2103,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cctype.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdio.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdlib.c</name>
    </file>
@@ -2114,9 +2115,6 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\ctime.c</name>
    </file>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cunistd.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cwchar.c</name>
    </file>
@@ -2168,9 +2166,6 @@
  </group>
  <group>
    <name>DeviceDrivers</name>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\drivers\core\device.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\drivers\ipc\completion.c</name>
    </file>
@@ -2243,6 +2238,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\src\components.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\src\device.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\src\idle.c</name>
    </file>
@@ -359,7 +359,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, AT32F407VGT7, __RTTHREAD__, __CLK_TCK=RT_TICK_PER_SECOND</Define>
              <Undefine />
-              <IncludePath>board\inc;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support;.;..\libraries\AT32F403A_407_Firmware_Library\drivers\inc;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support;board;applications;..\..\..\components\drivers\include;..\libraries\usbd_library\inc;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\drivers\include;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\include;..\..\..\components\finsh;..\..\..\components\drivers\include;board;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\posix\io\stdio;..\libraries\AT32F403A_407_Firmware_Library\drivers\inc;..\libraries\usbd_library\inc;board\inc;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;applications;.;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -432,6 +432,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -453,13 +460,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -508,13 +508,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -671,6 +664,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -335,7 +335,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, AT32F407VGT7, __RTTHREAD__, __CLK_TCK=RT_TICK_PER_SECOND</Define>
              <Undefine />
-              <IncludePath>board\inc;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support;.;..\libraries\AT32F403A_407_Firmware_Library\drivers\inc;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support;board;applications;..\..\..\components\drivers\include;..\libraries\usbd_library\inc;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\drivers\include;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\include;..\..\..\components\finsh;..\..\..\components\drivers\include;board;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\posix\io\stdio;..\libraries\AT32F403A_407_Firmware_Library\drivers\inc;..\libraries\usbd_library\inc;board\inc;..\libraries\AT32F403A_407_Firmware_Library\cmsis\cm4\device_support;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;applications;.;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -409,6 +409,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -430,13 +437,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -485,13 +485,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -648,6 +641,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -351,28 +351,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
-          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
-          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F413_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F413_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
-          <state>$PROJ_DIR$\..\libraries\usbd_library\inc</state>
-          <state>$PROJ_DIR$\applications</state>
-          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
-          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
+          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
+          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
+          <state>$PROJ_DIR$\..\libraries\usbd_library\inc</state>
+          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
          <state>$PROJ_DIR$\..\libraries\AT32F413_Firmware_Library\drivers\inc</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\applications</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F413_Firmware_Library\cmsis\cm4\device_support</state>
+          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F413_Firmware_Library\cmsis\cm4\core_support</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -1398,28 +1397,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
-          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
-          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F413_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F413_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
-          <state>$PROJ_DIR$\..\libraries\usbd_library\inc</state>
-          <state>$PROJ_DIR$\applications</state>
-          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
-          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
+          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
+          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
+          <state>$PROJ_DIR$\..\libraries\usbd_library\inc</state>
+          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
          <state>$PROJ_DIR$\..\libraries\AT32F413_Firmware_Library\drivers\inc</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\applications</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F413_Firmware_Library\cmsis\cm4\device_support</state>
+          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F413_Firmware_Library\cmsis\cm4\core_support</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -2105,6 +2103,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cctype.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdio.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdlib.c</name>
    </file>
@@ -2114,9 +2115,6 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\ctime.c</name>
    </file>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cunistd.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cwchar.c</name>
    </file>
@@ -2168,9 +2166,6 @@
  </group>
  <group>
    <name>DeviceDrivers</name>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\drivers\core\device.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\drivers\ipc\completion.c</name>
    </file>
@@ -2243,6 +2238,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\src\components.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\src\device.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\src\idle.c</name>
    </file>
@@ -359,7 +359,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, __RTTHREAD__, AT32F413RCT7</Define>
              <Undefine />
-              <IncludePath>..\libraries\AT32F413_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\libc\compilers\common\extension;..\libraries\AT32F413_Firmware_Library\cmsis\cm4\core_support;..\libraries\AT32F413_Firmware_Library\drivers\inc;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\libraries\usbd_library\inc;board;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\libraries\rt_drivers\config;..\..\..\components\drivers\include;..\..\..\components\libc\posix\ipc;.;..\..\..\components\libc\posix\io\eventfd;board\inc;..\..\..\components\drivers\include;applications;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\libraries\AT32F413_Firmware_Library\drivers\inc;..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\include;..\..\..\components\finsh;..\..\..\components\drivers\include;.;..\libraries\usbd_library\inc;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\stdio;board;..\libraries\AT32F413_Firmware_Library\cmsis\cm4\device_support;board\inc;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\libraries\AT32F413_Firmware_Library\cmsis\cm4\core_support;applications;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -432,6 +432,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -453,13 +460,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -508,13 +508,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -671,6 +664,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -335,7 +335,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, __RTTHREAD__, AT32F413RCT7</Define>
              <Undefine />
-              <IncludePath>..\libraries\AT32F413_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\libc\compilers\common\extension;..\libraries\AT32F413_Firmware_Library\cmsis\cm4\core_support;..\libraries\AT32F413_Firmware_Library\drivers\inc;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\libraries\usbd_library\inc;board;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\libraries\rt_drivers\config;..\..\..\components\drivers\include;..\..\..\components\libc\posix\ipc;.;..\..\..\components\libc\posix\io\eventfd;board\inc;..\..\..\components\drivers\include;applications;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\libraries\AT32F413_Firmware_Library\drivers\inc;..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\include;..\..\..\components\finsh;..\..\..\components\drivers\include;.;..\libraries\usbd_library\inc;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\stdio;board;..\libraries\AT32F413_Firmware_Library\cmsis\cm4\device_support;board\inc;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\libraries\AT32F413_Firmware_Library\cmsis\cm4\core_support;applications;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -409,6 +409,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -430,13 +437,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -485,13 +485,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -648,6 +641,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -53,7 +53,7 @@ rtconfig.BSP_LIBRARY_TYPE = at32_library
 objs.extend(SConscript(os.path.join(libraries_path_prefix, at32_library, 'SConscript')))

 # include usb libraries
-objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbfs_library', 'SConscript')))
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbotg_library', 'SConscript')))

 # include drivers
 objs.extend(SConscript(os.path.join(libraries_path_prefix, 'rt_drivers', 'SConscript')))
@@ -28,20 +28,20 @@ menu "On-chip Peripheral Drivers"
        bool "Enable on-chip FLASH"
        default n

-    menuconfig BSP_USING_USBFS
+    menuconfig BSP_USING_USBOTG
        bool "Enable USB BUS"
        default n
-        if BSP_USING_USBFS
-            menuconfig BSP_USING_USBFS1
+        if BSP_USING_USBOTG
+            menuconfig BSP_USING_USBOTG1
                bool "Enable USB BUS1"
                default n
-                if BSP_USING_USBFS1
-                    config BSP_USING_DEVICE_USBFS1
+                if BSP_USING_USBOTG1
+                    config BSP_USING_DEVICE_USBOTG1
                        bool "Enable USB1 Deivce"
                        select RT_USING_USB_DEVICE
                        default n

-                    config BSP_USING_HOST_USBFS1
+                    config BSP_USING_HOST_USBOTG1
                        bool "Enable USB1 Host"
                        select RT_USING_USB_HOST
                        default n
@@ -284,7 +284,7 @@ void at32_msp_can_init(void *instance)
 }
 #endif /* BSP_USING_CAN */

-#ifdef BSP_USING_USBFS
+#ifdef BSP_USING_USBOTG
 void at32_msp_usb_init(void *instance)
 {
    /* enable usb clock */
@@ -322,4 +322,4 @@ void at32_msp_usb_init(void *instance)
    }
 }

-#endif /* BSP_USING_USBFS */
+#endif /* BSP_USING_USBOTG */
@@ -351,28 +351,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
-          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
-          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F415_Firmware_Library\cmsis\cm4\core_support</state>
+          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
+          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F415_Firmware_Library\cmsis\cm4\device_support</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
+          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
          <state>$PROJ_DIR$\applications</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\libraries\AT32F415_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\..\..\include</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F415_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F415_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
-          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -1398,28 +1397,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
-          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
-          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F415_Firmware_Library\cmsis\cm4\core_support</state>
+          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
+          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F415_Firmware_Library\cmsis\cm4\device_support</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
+          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
          <state>$PROJ_DIR$\applications</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\libraries\AT32F415_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\..\..\include</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F415_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F415_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
-          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -2105,6 +2103,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cctype.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdio.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdlib.c</name>
    </file>
@@ -2114,9 +2115,6 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\ctime.c</name>
    </file>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cunistd.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cwchar.c</name>
    </file>
@@ -2168,9 +2166,6 @@
  </group>
  <group>
    <name>DeviceDrivers</name>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\drivers\core\device.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\drivers\ipc\completion.c</name>
    </file>
@@ -2243,6 +2238,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\src\components.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\src\device.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\src\idle.c</name>
    </file>
@@ -359,7 +359,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, __RTTHREAD__, AT32F415RCT7</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;applications;..\libraries\rt_drivers\config;..\libraries\usbfs_library\inc;..\..\..\components\drivers\include;.;..\libraries\AT32F415_Firmware_Library\cmsis\cm4\core_support;..\libraries\AT32F415_Firmware_Library\cmsis\cm4\device_support;board\inc;..\..\..\components\libc\posix\ipc;..\libraries\AT32F415_Firmware_Library\drivers\inc;..\..\..\components\libc\posix\io\eventfd;board;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\include;..\..\..\components\finsh;applications;..\..\..\components\drivers\include;board\inc;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\stdio;..\libraries\usbfs_library\inc;.;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\libraries\AT32F415_Firmware_Library\drivers\inc;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include;..\libraries\AT32F415_Firmware_Library\cmsis\cm4\device_support;board;..\libraries\AT32F415_Firmware_Library\cmsis\cm4\core_support</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -432,6 +432,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -453,13 +460,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -508,13 +508,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -671,6 +664,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -335,7 +335,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, __RTTHREAD__, AT32F415RCT7</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;applications;..\libraries\rt_drivers\config;..\libraries\usbfs_library\inc;..\..\..\components\drivers\include;.;..\libraries\AT32F415_Firmware_Library\cmsis\cm4\core_support;..\libraries\AT32F415_Firmware_Library\cmsis\cm4\device_support;board\inc;..\..\..\components\libc\posix\ipc;..\libraries\AT32F415_Firmware_Library\drivers\inc;..\..\..\components\libc\posix\io\eventfd;board;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\include;..\..\..\components\finsh;applications;..\..\..\components\drivers\include;board\inc;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\stdio;..\libraries\usbfs_library\inc;.;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\libraries\AT32F415_Firmware_Library\drivers\inc;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include;..\libraries\AT32F415_Firmware_Library\cmsis\cm4\device_support;board;..\libraries\AT32F415_Firmware_Library\cmsis\cm4\core_support</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -409,6 +409,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -430,13 +437,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -485,13 +485,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -648,6 +641,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -352,15 +352,14 @@
          <name>CCIncludePath2</name>
          <state />
          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
          <state>$PROJ_DIR$\..\libraries\AT32F421_Firmware_Library\cmsis\cm4\core_support</state>
          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
          <state>$PROJ_DIR$\.</state>
          <state>$PROJ_DIR$\applications</state>
@@ -1398,15 +1397,14 @@
          <name>CCIncludePath2</name>
          <state />
          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
          <state>$PROJ_DIR$\..\libraries\AT32F421_Firmware_Library\cmsis\cm4\core_support</state>
          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
          <state>$PROJ_DIR$\.</state>
          <state>$PROJ_DIR$\applications</state>
@@ -2103,6 +2101,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cctype.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdio.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdlib.c</name>
    </file>
@@ -2112,9 +2113,6 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\ctime.c</name>
    </file>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cunistd.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cwchar.c</name>
    </file>
@@ -2166,9 +2164,6 @@
  </group>
  <group>
    <name>DeviceDrivers</name>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\drivers\core\device.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\drivers\ipc\completion.c</name>
    </file>
@@ -2241,6 +2236,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\src\components.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\src\device.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\src\idle.c</name>
    </file>
@@ -359,7 +359,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, AT32F421C8T7, __RTTHREAD__, __CLK_TCK=RT_TICK_PER_SECOND</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;.;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\libraries\AT32F421_Firmware_Library\cmsis\cm4\core_support;..\libraries\AT32F421_Firmware_Library\drivers\inc;..\libraries\rt_drivers\config;..\..\..\components\drivers\include;..\libraries\AT32F421_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\epoll;board;board\inc;applications;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>board\inc;..\libraries\AT32F421_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\include;.;..\..\..\components\finsh;board;..\..\..\components\drivers\include;applications;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\stdio;..\libraries\AT32F421_Firmware_Library\drivers\inc;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;..\libraries\AT32F421_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -432,6 +432,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -453,13 +460,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -508,13 +508,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -671,6 +664,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -335,7 +335,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, AT32F421C8T7, __RTTHREAD__, __CLK_TCK=RT_TICK_PER_SECOND</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;.;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\libraries\AT32F421_Firmware_Library\cmsis\cm4\core_support;..\libraries\AT32F421_Firmware_Library\drivers\inc;..\libraries\rt_drivers\config;..\..\..\components\drivers\include;..\libraries\AT32F421_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\epoll;board;board\inc;applications;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>board\inc;..\libraries\AT32F421_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\include;.;..\..\..\components\finsh;board;..\..\..\components\drivers\include;applications;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\stdio;..\libraries\AT32F421_Firmware_Library\drivers\inc;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;..\libraries\AT32F421_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -409,6 +409,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -430,13 +437,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -485,13 +485,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -648,6 +641,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -53,7 +53,7 @@ rtconfig.BSP_LIBRARY_TYPE = at32_library
 objs.extend(SConscript(os.path.join(libraries_path_prefix, at32_library, 'SConscript')))

 # include usb libraries
-objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbfs_library', 'SConscript')))
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbotg_library', 'SConscript')))

 # include drivers
 objs.extend(SConscript(os.path.join(libraries_path_prefix, 'rt_drivers', 'SConscript')))
@@ -28,20 +28,20 @@ menu "On-chip Peripheral Drivers"
        bool "Enable on-chip FLASH"
        default n

-    menuconfig BSP_USING_USBFS
+    menuconfig BSP_USING_USBOTG
        bool "Enable USB BUS"
        default n
-        if BSP_USING_USBFS
-            menuconfig BSP_USING_USBFS1
+        if BSP_USING_USBOTG
+            menuconfig BSP_USING_USBOTG1
                bool "Enable USB BUS1"
                default n
-                if BSP_USING_USBFS1
-                    config BSP_USING_DEVICE_USBFS1
+                if BSP_USING_USBOTG1
+                    config BSP_USING_DEVICE_USBOTG1
                        bool "Enable USB1 Deivce"
                        select RT_USING_USB_DEVICE
                        default n

-                    config BSP_USING_HOST_USBFS1
+                    config BSP_USING_HOST_USBOTG1
                        bool "Enable USB1 Host"
                        select RT_USING_USB_HOST
                        default n
@@ -264,7 +264,7 @@ void at32_msp_can_init(void *instance)
 }
 #endif /* BSP_USING_CAN */

-#ifdef BSP_USING_USBFS
+#ifdef BSP_USING_USBOTG
 void at32_msp_usb_init(void *instance)
 {
    /* defalut usb clock from hext */
@@ -316,7 +316,7 @@ void at32_msp_usb_init(void *instance)
        }
    }
 }
-#endif /* BSP_USING_USBFS */
+#endif /* BSP_USING_USBOTG */

 #ifdef BSP_USING_DAC
 void at32_msp_dac_init(void *instance)
@@ -351,28 +351,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F423_Firmware_Library\cmsis\cm4\device_support</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F423_Firmware_Library\cmsis\cm4\core_support</state>
          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
          <state>$PROJ_DIR$\..\libraries\AT32F423_Firmware_Library\drivers\inc</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F423_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
+          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
          <state>$PROJ_DIR$\applications</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\..\..\include</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F423_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -1398,28 +1397,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F423_Firmware_Library\cmsis\cm4\device_support</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F423_Firmware_Library\cmsis\cm4\core_support</state>
          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
          <state>$PROJ_DIR$\..\libraries\AT32F423_Firmware_Library\drivers\inc</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F423_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
+          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
          <state>$PROJ_DIR$\applications</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
          <state>$PROJ_DIR$\..\..\..\include</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F423_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -2105,6 +2103,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cctype.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdio.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdlib.c</name>
    </file>
@@ -2114,9 +2115,6 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\ctime.c</name>
    </file>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cunistd.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cwchar.c</name>
    </file>
@@ -2168,9 +2166,6 @@
  </group>
  <group>
    <name>DeviceDrivers</name>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\drivers\core\device.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\drivers\ipc\completion.c</name>
    </file>
@@ -2243,6 +2238,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\src\components.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\src\device.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\src\idle.c</name>
    </file>
@@ -359,7 +359,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, AT32F423VCT7, __RTTHREAD__</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;board\inc;..\libraries\AT32F423_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\libraries\rt_drivers\config;applications;..\libraries\usbfs_library\inc;..\..\..\components\drivers\include;.;..\libraries\AT32F423_Firmware_Library\drivers\inc;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;..\..\..\components\drivers\include;..\libraries\AT32F423_Firmware_Library\cmsis\cm4\device_support;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;board;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\..\..\include;..\libraries\rt_drivers\config;..\..\..\components\libc\compilers\common\include;board\inc;..\..\..\components\drivers\include;..\libraries\AT32F423_Firmware_Library\drivers\inc;..\libraries\rt_drivers;..\libraries\AT32F423_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\libc\compilers\common\extension;board;..\..\..\components\drivers\include;..\..\..\components\finsh;..\..\..\libcpu\arm\common;..\..\..\components\libc\posix\io\poll;..\..\..\components\drivers\include;..\libraries\AT32F423_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\ipc;.;applications;..\libraries\usbfs_library\inc;..\..\..\libcpu\arm\cortex-m4;..\..\..\components\libc\posix\io\stdio</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -432,6 +432,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -453,13 +460,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -508,13 +508,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -671,6 +664,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -335,7 +335,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, AT32F423VCT7, __RTTHREAD__</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;board\inc;..\libraries\AT32F423_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;..\libraries\rt_drivers\config;applications;..\libraries\usbfs_library\inc;..\..\..\components\drivers\include;.;..\libraries\AT32F423_Firmware_Library\drivers\inc;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;..\..\..\components\drivers\include;..\libraries\AT32F423_Firmware_Library\cmsis\cm4\device_support;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;board;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\..\..\include;..\libraries\rt_drivers\config;..\..\..\components\libc\compilers\common\include;board\inc;..\..\..\components\drivers\include;..\libraries\AT32F423_Firmware_Library\drivers\inc;..\libraries\rt_drivers;..\libraries\AT32F423_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\libc\compilers\common\extension;board;..\..\..\components\drivers\include;..\..\..\components\finsh;..\..\..\libcpu\arm\common;..\..\..\components\libc\posix\io\poll;..\..\..\components\drivers\include;..\libraries\AT32F423_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\ipc;.;applications;..\libraries\usbfs_library\inc;..\..\..\libcpu\arm\cortex-m4;..\..\..\components\libc\posix\io\stdio</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -409,6 +409,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -430,13 +437,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -485,13 +485,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -648,6 +641,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -53,7 +53,7 @@ rtconfig.BSP_LIBRARY_TYPE = at32_library
 objs.extend(SConscript(os.path.join(libraries_path_prefix, at32_library, 'SConscript')))

 # include usb libraries
-objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbfs_library', 'SConscript')))
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbotg_library', 'SConscript')))

 # include drivers
 objs.extend(SConscript(os.path.join(libraries_path_prefix, 'rt_drivers', 'SConscript')))
@@ -28,20 +28,20 @@ menu "On-chip Peripheral Drivers"
        bool "Enable on-chip FLASH"
        default n

-    menuconfig BSP_USING_USBFS
+    menuconfig BSP_USING_USBOTG
        bool "Enable USB BUS"
        default n
-        if BSP_USING_USBFS
-            menuconfig BSP_USING_USBFS1
+        if BSP_USING_USBOTG
+            menuconfig BSP_USING_USBOTG1
                bool "Enable USB BUS1"
                default n
-                if BSP_USING_USBFS1
-                    config BSP_USING_DEVICE_USBFS1
+                if BSP_USING_USBOTG1
+                    config BSP_USING_DEVICE_USBOTG1
                        bool "Enable USB1 Deivce"
                        select RT_USING_USB_DEVICE
                        default n

-                    config BSP_USING_HOST_USBFS1
+                    config BSP_USING_HOST_USBOTG1
                        bool "Enable USB1 Host"
                        select RT_USING_USB_HOST
                        default n
@@ -248,7 +248,7 @@ void at32_msp_can_init(void *instance)
 }
 #endif /* BSP_USING_CAN */

-#ifdef BSP_USING_USBFS
+#ifdef BSP_USING_USBOTG
 void at32_msp_usb_init(void *instance)
 {
    /* defalut usb clock from hext */
@@ -296,4 +296,4 @@ void at32_msp_usb_init(void *instance)
    }
 }

-#endif /* BSP_USING_USBFS */
+#endif /* BSP_USING_USBOTG */
@@ -351,28 +351,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
-          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
-          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F425_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
+          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
+          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
+          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
          <state>$PROJ_DIR$\applications</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F425_Firmware_Library\cmsis\cm4\core_support</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
-          <state>$PROJ_DIR$\..\..\..\include</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F425_Firmware_Library\drivers\inc</state>
-          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
          <state>$PROJ_DIR$\..\libraries\AT32F425_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F425_Firmware_Library\cmsis\cm4\core_support</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
+          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -1398,28 +1397,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
-          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
-          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F425_Firmware_Library\drivers\inc</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
+          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
+          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
+          <state>$PROJ_DIR$\board\inc</state>
+          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
+          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
          <state>$PROJ_DIR$\applications</state>
          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F425_Firmware_Library\cmsis\cm4\core_support</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
-          <state>$PROJ_DIR$\..\..\..\include</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
-          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F425_Firmware_Library\drivers\inc</state>
-          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
          <state>$PROJ_DIR$\..\libraries\AT32F425_Firmware_Library\cmsis\cm4\device_support</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F425_Firmware_Library\cmsis\cm4\core_support</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
+          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -2105,6 +2103,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cctype.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdio.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdlib.c</name>
    </file>
@@ -2114,9 +2115,6 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\ctime.c</name>
    </file>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cunistd.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cwchar.c</name>
    </file>
@@ -2168,9 +2166,6 @@
  </group>
  <group>
    <name>DeviceDrivers</name>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\drivers\core\device.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\drivers\ipc\completion.c</name>
    </file>
@@ -2243,6 +2238,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\src\components.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\src\device.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\src\idle.c</name>
    </file>
@@ -359,7 +359,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, __RTTHREAD__, AT32F425C8T7</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;applications;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;board;..\libraries\rt_drivers\config;..\libraries\usbfs_library\inc;..\..\..\components\drivers\include;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;board\inc;..\libraries\AT32F425_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\drivers\include;.;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\libraries\AT32F425_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\posix\io\epoll;..\libraries\AT32F425_Firmware_Library\drivers\inc;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\libraries\AT32F425_Firmware_Library\drivers\inc;..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;board;..\..\..\include;..\..\..\components\finsh;..\..\..\components\drivers\include;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\stdio;..\libraries\AT32F425_Firmware_Library\cmsis\cm4\core_support;..\libraries\usbfs_library\inc;applications;.;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include;board\inc;..\libraries\AT32F425_Firmware_Library\cmsis\cm4\device_support</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -432,6 +432,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -453,13 +460,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -508,13 +508,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -671,6 +664,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -335,7 +335,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, __RTTHREAD__, AT32F425C8T7</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;applications;..\..\..\components\libc\compilers\common\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\..\..\components\drivers\include;..\..\..\components\drivers\include;board;..\libraries\rt_drivers\config;..\libraries\usbfs_library\inc;..\..\..\components\drivers\include;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;board\inc;..\libraries\AT32F425_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\drivers\include;.;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\libraries\AT32F425_Firmware_Library\cmsis\cm4\core_support;..\..\..\components\libc\posix\io\epoll;..\libraries\AT32F425_Firmware_Library\drivers\inc;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>..\libraries\AT32F425_Firmware_Library\drivers\inc;..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;board;..\..\..\include;..\..\..\components\finsh;..\..\..\components\drivers\include;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\stdio;..\libraries\AT32F425_Firmware_Library\cmsis\cm4\core_support;..\libraries\usbfs_library\inc;applications;.;..\..\..\libcpu\arm\cortex-m4;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include;board\inc;..\libraries\AT32F425_Firmware_Library\cmsis\cm4\device_support</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -409,6 +409,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -430,13 +437,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -485,13 +485,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -648,6 +641,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -53,7 +53,7 @@ rtconfig.BSP_LIBRARY_TYPE = at32_library
 objs.extend(SConscript(os.path.join(libraries_path_prefix, at32_library, 'SConscript')))

 # include usb libraries
-objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbfs_library', 'SConscript')))
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbotg_library', 'SConscript')))

 # include drivers
 objs.extend(SConscript(os.path.join(libraries_path_prefix, 'rt_drivers', 'SConscript')))
@@ -32,35 +32,35 @@ menu "On-chip Peripheral Drivers"
        bool "Enable on-chip FLASH"
        default n

-    menuconfig BSP_USING_USBFS
+    menuconfig BSP_USING_USBOTG
        bool "Enable USB BUS"
        default n
-        if BSP_USING_USBFS
-            menuconfig BSP_USING_USBFS1
+        if BSP_USING_USBOTG
+            menuconfig BSP_USING_USBOTG1
                bool "Enable USB BUS1"
                default n
-                if BSP_USING_USBFS1
-                    config BSP_USING_DEVICE_USBFS1
+                if BSP_USING_USBOTG1
+                    config BSP_USING_DEVICE_USBOTG1
                        bool "Enable USB1 Deivce"
                        select RT_USING_USB_DEVICE
                        default n

-                    config BSP_USING_HOST_USBFS1
+                    config BSP_USING_HOST_USBOTG1
                        bool "Enable USB1 Host"
                        select RT_USING_USB_HOST
                        default n
                endif

-            menuconfig BSP_USING_USBFS2
+            menuconfig BSP_USING_USBOTG2
                bool "Enable USB BUS2"
                default n
-                if BSP_USING_USBFS2
-                    config BSP_USING_DEVICE_USBFS2
+                if BSP_USING_USBOTG2
+                    config BSP_USING_DEVICE_USBOTG2
                        bool "Enable USB2 Deivce"
                        select RT_USING_USB_DEVICE
                        default n

-                    config BSP_USING_HOST_USBFS2
+                    config BSP_USING_HOST_USBOTG2
                        bool "Enable USB2 Host"
                        select RT_USING_USB_HOST
                        default n
@@ -478,17 +478,17 @@ void at32_msp_sdram_init(void *instance)

 #endif /* BSP_USING_SDRAM */

-#ifdef BSP_USING_USBFS
+#ifdef BSP_USING_USBOTG
 void at32_msp_usb_init(void *instance)
 {
    /* defalut usb clock from hick */
    usb_clk48_s clk_s = USB_CLK_HICK;

-#if defined (BSP_USING_HOST_USBFS1) || defined (BSP_USING_DEVICE_USBFS1)
+#if defined (BSP_USING_HOST_USBOTG1) || defined (BSP_USING_DEVICE_USBOTG1)
    crm_periph_clock_enable(CRM_OTGFS1_PERIPH_CLOCK, TRUE);
 #endif

-#if defined (BSP_USING_HOST_USBFS2) || defined (BSP_USING_DEVICE_USBFS2)
+#if defined (BSP_USING_HOST_USBOTG2) || defined (BSP_USING_DEVICE_USBOTG2)
    crm_periph_clock_enable(CRM_OTGFS2_PERIPH_CLOCK, TRUE);
 #endif

@@ -570,7 +570,7 @@ void at32_msp_usb_init(void *instance)
        }
    }
 }
-#endif /* BSP_USING_USBFS */
+#endif /* BSP_USING_USBOTG */

 #ifdef BSP_USING_DAC
 void at32_msp_dac_init(void *instance)
@@ -351,28 +351,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
-          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
-          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F435_437_Firmware_Library\drivers\inc</state>
-          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
-          <state>$PROJ_DIR$\applications</state>
-          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
-          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
+          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
          <state>$PROJ_DIR$\..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\device_support</state>
+          <state>$PROJ_DIR$\board\inc</state>
+          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F435_437_Firmware_Library\drivers\inc</state>
+          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
+          <state>$PROJ_DIR$\applications</state>
+          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
          <state>$PROJ_DIR$\..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
+          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -1398,28 +1397,27 @@
        <option>
          <name>CCIncludePath2</name>
          <state />
-          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
-          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
-          <state>$PROJ_DIR$\.</state>
-          <state>$PROJ_DIR$\board\inc</state>
-          <state>$PROJ_DIR$\board</state>
          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension\fcntl\octal</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\epoll</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
-          <state>$PROJ_DIR$\..\libraries\AT32F435_437_Firmware_Library\drivers\inc</state>
-          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
-          <state>$PROJ_DIR$\applications</state>
-          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
-          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\ipc</state>
+          <state>$PROJ_DIR$\..\..\..\components\finsh</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\common</state>
          <state>$PROJ_DIR$\..\..\..\libcpu\arm\cortex-m4</state>
          <state>$PROJ_DIR$\..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\device_support</state>
+          <state>$PROJ_DIR$\board\inc</state>
+          <state>$PROJ_DIR$\..\..\..\components\drivers\include</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\stdio</state>
+          <state>$PROJ_DIR$\..\libraries\AT32F435_437_Firmware_Library\drivers\inc</state>
+          <state>$PROJ_DIR$\..\libraries\rt_drivers</state>
+          <state>$PROJ_DIR$\.</state>
          <state>$PROJ_DIR$\..\libraries\usbfs_library\inc</state>
+          <state>$PROJ_DIR$\applications</state>
+          <state>$PROJ_DIR$\..\libraries\rt_drivers\config</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\poll</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\extension</state>
          <state>$PROJ_DIR$\..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\core_support</state>
-          <state>$PROJ_DIR$\..\..\..\components\libc\posix\io\eventfd</state>
+          <state>$PROJ_DIR$\..\..\..\components\libc\compilers\common\include</state>
+          <state>$PROJ_DIR$\..\..\..\include</state>
+          <state>$PROJ_DIR$\board</state>
        </option>
        <option>
          <name>CCStdIncCheck</name>
@@ -2105,6 +2103,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cctype.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdio.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cstdlib.c</name>
    </file>
@@ -2114,9 +2115,6 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\ctime.c</name>
    </file>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cunistd.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\libc\compilers\common\cwchar.c</name>
    </file>
@@ -2168,9 +2166,6 @@
  </group>
  <group>
    <name>DeviceDrivers</name>
-    <file>
-      <name>$PROJ_DIR$\..\..\..\components\drivers\core\device.c</name>
-    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\components\drivers\ipc\completion.c</name>
    </file>
@@ -2243,6 +2238,9 @@
    <file>
      <name>$PROJ_DIR$\..\..\..\src\components.c</name>
    </file>
+    <file>
+      <name>$PROJ_DIR$\..\..\..\src\device.c</name>
+    </file>
    <file>
      <name>$PROJ_DIR$\..\..\..\src\idle.c</name>
    </file>
@@ -359,7 +359,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, __RTTHREAD__, AT32F435ZMT7</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\libc\compilers\common\include;board\inc;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\libraries\AT32F435_437_Firmware_Library\drivers\inc;..\..\..\components\drivers\include;..\..\..\components\drivers\include;board;..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\core_support;..\libraries\rt_drivers\config;..\libraries\usbfs_library\inc;..\..\..\components\drivers\include;.;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;applications;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>board\inc;..\libraries\AT32F435_437_Firmware_Library\drivers\inc;..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\components\finsh;..\..\..\components\drivers\include;..\..\..\components\libc\compilers\common\extension\fcntl\octal;board;..\..\..\components\libc\posix\io\stdio;..\libraries\usbfs_library\inc;..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\device_support;..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\core_support;..\..\..\include;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;applications;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include;.</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -432,6 +432,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -453,13 +460,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -508,13 +508,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -671,6 +664,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -335,7 +335,7 @@
              <MiscControls />
              <Define>__STDC_LIMIT_MACROS, RT_USING_ARMLIBC, USE_STDPERIPH_DRIVER, RT_USING_LIBC, __CLK_TCK=RT_TICK_PER_SECOND, __RTTHREAD__, AT32F435ZMT7</Define>
              <Undefine />
-              <IncludePath>..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\extension;..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\device_support;..\..\..\components\libc\compilers\common\include;board\inc;..\..\..\libcpu\arm\cortex-m4;..\..\..\include;..\libraries\AT32F435_437_Firmware_Library\drivers\inc;..\..\..\components\drivers\include;..\..\..\components\drivers\include;board;..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\core_support;..\libraries\rt_drivers\config;..\libraries\usbfs_library\inc;..\..\..\components\drivers\include;.;..\..\..\components\libc\posix\ipc;..\..\..\components\libc\posix\io\eventfd;applications;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\..\..\components\libc\compilers\common\extension\fcntl\octal;..\..\..\components\libc\posix\io\epoll;..\..\..\components\finsh;..\libraries\rt_drivers</IncludePath>
+              <IncludePath>board\inc;..\libraries\AT32F435_437_Firmware_Library\drivers\inc;..\..\..\components\libc\compilers\common\extension;..\..\..\components\drivers\include;..\..\..\libcpu\arm\cortex-m4;..\..\..\components\finsh;..\..\..\components\drivers\include;..\..\..\components\libc\compilers\common\extension\fcntl\octal;board;..\..\..\components\libc\posix\io\stdio;..\libraries\usbfs_library\inc;..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\device_support;..\libraries\AT32F435_437_Firmware_Library\cmsis\cm4\core_support;..\..\..\include;..\libraries\rt_drivers;..\..\..\components\drivers\include;..\..\..\libcpu\arm\common;..\libraries\rt_drivers\config;..\..\..\components\libc\posix\ipc;applications;..\..\..\components\libc\posix\io\poll;..\..\..\components\libc\compilers\common\include;.</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -409,6 +409,13 @@
              <FilePath>..\..\..\components\libc\compilers\common\cctype.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>cstdio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\components\libc\compilers\common\cstdio.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>cstdlib.c</FileName>
@@ -430,13 +437,6 @@
              <FilePath>..\..\..\components\libc\compilers\common\ctime.c</FilePath>
            </File>
          </Files>
-          <Files>
-            <File>
-              <FileName>cunistd.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\libc\compilers\common\cunistd.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>cwchar.c</FileName>
@@ -485,13 +485,6 @@
        </Group>
        <Group>
          <GroupName>DeviceDrivers</GroupName>
-          <Files>
-            <File>
-              <FileName>device.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>..\..\..\components\drivers\core\device.c</FilePath>
-            </File>
-          </Files>
          <Files>
            <File>
              <FileName>completion.c</FileName>
@@ -648,6 +641,13 @@
              <FilePath>..\..\..\src\components.c</FilePath>
            </File>
          </Files>
+          <Files>
+            <File>
+              <FileName>device.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\..\src\device.c</FilePath>
+            </File>
+          </Files>
          <Files>
            <File>
              <FileName>idle.c</FileName>
@@ -53,7 +53,7 @@ rtconfig.BSP_LIBRARY_TYPE = at32_library
 objs.extend(SConscript(os.path.join(libraries_path_prefix, at32_library, 'SConscript')))

 # include usb libraries
-objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbfs_library', 'SConscript')))
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbotg_library', 'SConscript')))

 # include drivers
 objs.extend(SConscript(os.path.join(libraries_path_prefix, 'rt_drivers', 'SConscript')))
--- a/Show More
+++ b/Show More